ASTM A105 Flanges Chinyorwa cheChinyorwa Chekupedzisira

Tee yePIPE Fittings, pombi dzinobatanidza. Zvakare inonzi pombi yakakodzera tee kana tee fittings, tee majoini, inoshandiswa munzvimbo huru pombi yebazi.

Iyo ASTM A105 yakajairika inoreva Carbon Steel Flanges iyo inoumbwa kune yakakwirira-tembiricha application mune yekumanikidza system.

Stainless Simbi Fasteners
Iyo Corrosion inodzivirira nekukurumidza Alloys inoshandiswa zvakanyanya nemaindasitiri emakemikari ekugadzirisa kwemakemikari. Kudikanwa kwekuita kwakavimbika kunotungamira mukugamuchirwa kwavo uye kukura munzvimbo dzesimba, hutano uye nemafuta uye gasi uye firmace fashformation maindasitiri.

Alloy 254 SMO or the Astm A182 F44 Material is a very high end, molybdenum and nitrogen alloyed super austenitic stainless steel. Uyu Alloy ane yakaderera kwazvo zvemukati kabhoni.

Welding Neck Flange, Slip On Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Blind Flange, Orifice Flanges, Plate Flange, Long Welding Neck Flanges, Weldoflange, Nipoflange, Expander Flange, Reducing Flange, WNRF Flange, SORF Flange, SWRF Flange, Custom Flange as per Drawing etc.

Aya A234 WPB SCH 80 ELBOW zvakare inowanikwa zvakare mune yakafara saizi. Chinangwa chekushandisa ASTM A234 GRW WPB Elbow ndeyekuchinja nzira kana kuyerera muhurongwa hwekupa.

ASTM A240 Type 2205 Plate is a duplex stainless simbi simbi iyo inoshandiswa zvakanyanya mumaindasitiri emakemikari akadai sekuongorora kwemakemikari, kuongorora kwegasi, uye muinjiniya ekumaini. SA 240 GR 2205 pepa rinogadzirwa kubva kuGrade 2205 Simbi isina simbi, iyo iri musanganiswa wesimbi uye autenitic simbi.

Nilo Alloy 36, WMR 1.3912, Invar 36® is a nickel-iron
Sk 10s kune SC XXS kana seyakaitwa pane zvetsika zvinodiwa

ASTM A23 WP11 Fittings Zvinoreva kuti Ndege dzePLIE ISTM A234 WP14, mutengesi Simbi Fittings, yeSeams uye Watched Kuvaka.

Carbon Steel Flange Supporter
Alloy Steel Flanges
Titanium yeTitanium inenge 60% iyo yeStusless Simbi uye Nickel Alloys, uremu uhu hunoita kuti ive sarudzo yakakurumbira mukushandisa kwakadai sekusarongeka.
SA335P91 Musungwa Asina Steel Steel Pipi

Chaizvoizvo zvikumbiro 310 \ /30s Stainless Steel Pipe mubhedha weBed topers, tungamira marara Saggrars, chikafu chekugadzirisa chikafu, zvimiro zveCryogenic.

Zvinhu Alloy Steel Astm A333 Giredhi 3, Giredhi 6, Giredhi 8, Giredhi 9
A butt weld pombi yakakodzera kuti ishandiswe pane saiti pakupera kwayo (s) pamwe chete uye kubvumira shanduko kana pombi dhata, kana kudhonzwa kana kupera.
\ / 5 zvichienderana

ASTM A194 Spection Covery Carbon, Alloy uye Stainless Steel Nuts Kuti Yakatemerwa Dzvinyiriro uye \ / / kana High Tembiricha Service. American National Standard Standard Syd Duty Hex Series (Ansi B 18.2.2) ichashandiswa kunze kwekunge zvataurwa neimwe nzira. Nuts hapana anodarika 1 inch mukuita saizi ichaenderana neUNC Series kirasi 2b.

Yakakwira Chromium, Molybdenum uye nitrogen yezvinyorwa zvinopa mukudzikisira kwakaenzana nhamba (40, kupa zvakakwirira kudzikisira kugona kuAustenitic uye duplex stainly media, uye tembiriro rakadzora kupfuura 50¡¡¡.

Alloy 800 is a Nickel-simbi-Chromium Alloy ine simba rakanyanya uye rakanyanya kupokana ne oxidation uye corrosion pakupisa kwakanyanya. ASTM b407 uns n08800 incoloy 800 W. nr. 1.4876 Yakatemwa Pombi inoshandiswa zvakanyanya zvekuvakwa kwemidziyo inoda kuramba kupokana, kupisa kupesana, simba, uye kugadzikana kwebasa kusvika 1500 ° F (816 ° C).

ASTM A105 Flanges, A105 Carbon Steel Flanges, A105N Flanges, Asme Sa105 Flanges, CS 105 Flanges Mugadziri

Izvi zvinopa zvakanyatsosimbiswa kuramba kuSulfutic acid. Iyo ine zvakare yakakwira zvemukati, kuti uwedzere kupokana ne oxidizing makemikari uye maitiro ehova dzakasvibiswa neFerric ion uye yakanyungudika oksijeni.

ASTM a182 F12 round Bar inowanzoshandiswa mune dzakasiyana maindasitiri, yakadai seindasitiri yemhepo, indasitiri yeSimbi, et1 f12 bar stock inowanikwa mune dzakasiyana siyana.

Flange inguva yekuputika, muromo kana rim, ingave yekunze kana yemukati, iyo inoshandira kuwedzera simba (sekupisa kweiyo danda resimbi senge i-danda kana t-danda); Zvekubatanidza zviri nyore \ / kuendesa kwekusangana kwesimba nechimwe chinhu (sekupenya pakupera kwepombi, steam cylinder, etc., kana pane lens gomo rekamera); Kana kuti zvokutsvedza uye kutungamira mafambiro emuchina kana zvikamu zvaro (sekusiyana-siyana kwemukati wemuchina wemuchina kana tram vhiri, inochengeta mavhiri kubva pamapundu kubva pamapundu). Izwi rekuti "Flange" rinoshandiswawo kune rudzi rwezvishandiso zvinoshandiswa kuumba malanges.

ASME B36.19M ndiyo yakatarwa yetsvina yetsvina, inotsanangura zviyero, kushivirira, uye zvinodiwa nezvikumbiro zvemubayiro miviri uye zvisina maaipi.

Iyo inoratidza kupokana kwakanaka kune vasina kwavakarerekera uye kuderedza nharaunda. Aya maitiro aya anogadzira iyo ine mhuru, yefirimu rinodzivirira risingabvumirwe, asi rinochengetedza oxidation kupokana nekunyanyisa kupisa.

Iyo 6mo Super Austenitic Steel inosanganisa zvine mwero zvine simba simba uye yakakwirira dunhu neakanakisa kupesana mumvura yegungwa uye dzakasiyana siyana dzemaindasitiri.

CS 105 Flanges, Fittings, mavharuko uye zvimwe zvikamu zvakasiyana-siyana zvakarairwa kuti mutengi mugumo kana kuyiripiti zviyero zvakadai seMSS, ASME uye API STEPLICATION YAKABVUNZWA MUCHESE. Kukanganwira kune iyi spection kunogumira kune zviuru gumi lbs. ASTM A105 WN Flanges inowanikwa nyore nyore kune zvinoshandiswa muindasitiri uye minda yekufambisa. Iyo ANSI a105 Flanges kuderedza ndeyechokwadi inoshandiswa kudzikisira huwandu hwemutsara uko nzvimbo yekukwana isingazotenderi kureba kweASTM a1055 Maindasitiri ekugadzira carbon Steel A105N PIPE Flange inokwanisika zvizere kuGax sosi.

Iyo kabhoni Simbi A234 WPB Smls kuderedza chigadzirwa chinoderedza iyo pombi.Ukundikana yakatsanangurwa carbon simbi mahwendefa kana pepa racho rive rezviyo zvezviyo kana zvakanaka zviyo zvezviyo. Iyo ASTM A234 WP9 ichaitirwa tsika yakanaka yezviyo.

Incoloy 800h Flange isu tine mukurumbira akasimba muindasitiri yekugadzira yakakwirira-mhando mafirita emhando dzakasiyana dzaigona kukodzera zvinodiwa nevatengi vedu. Isu tinogadzira incoloy 800 flanges iyo yakavimbika uye yakakwira mumhando. Isu tinoshandisa mari dzekutanga uye temberi yemachina ekugadzira ASTM B564 uns n08800 incoloy 800 flanges.

Nickel-based alloys inobatsira zvikuru zvigadzirwa zvekugadzira yakakwirira-mhando zvigadzirwa zveTubular. Chimwe chezvikonzero zvakakosha ndiko kwakanakira kudzikisira kupesana mumamiriro ese emvura uye kwakanyanya kusimbisira.

Iyo yakabatanidzwa yakabatanidzwa inoumbwa nezvireverwe zvitatu zvakasiyana uye yakazvimirira kunyangwe isina zvikamu zvemukati; malipi, masika, uye kusungwa; izvo zvakaunganidzwa nechimwe pesvedzero, iyo yakakodzera. Kukosha kwakakosha kunodiwa mukusarudzwa uye kushandiswa kwezvinhu zvese zviripo kuti uwane mubatanidzwa, iyo inogamuchirika kusunganidzwa.

Izvo zvinokwanisa kutsungirira huwandu hwakawanda hwekuita oxidizing uye zvisiri-oxidizing makemikari, uye zvinoratidzira kuramba kwakanyanya kudzikisira uye kurwiswa kwechikepe pamberi pehuku uye kumwe kudziya.

Izvi zvakakodzera zvinobva zvave chikamu chehurongwa hwekutakura mvura (Oiri, gasi, steam, makemikari, ...) nenzira yakachengeteka uye inoshanda, kupfuura marefu mapfupi kana mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu mapfupi kana marefu.

316L 1.4401 S31603 Stainless Steel pombi inzvimbo inoverengeka uye yekubhadhara pombi inowanzo shandiswa mune dzakasiyana siyana dzekushandisa maindasitiri uye dzekutengesa. Iyi SS uns s31603 pombi inogadzirwa kubva kune yakakwirira mhando 316l simbi simbi ine simba rakanakisa kuCorrosion, oxidation uye yakaita kuti ive yakakodzera nharaunda dzakaoma kana dzakanyanya kushushikana.

ASTM A316 TP316 chiitiko chakajairika chechisema, seam yakakwira, uye inotonhora yakashanda yakashanda muAustenitic isina mapaipi ebundu uye general corrorive. Pombi 316 isina kugadzirwa yeindasitiri yakagadzirwa kubva musanganiswa weChromium, Nickel, uye Molbdenum, iyo inopa SS 316 seamless tube yakanakisa kuramba uye ngura.
Kurovera, Drill, punch, jecha rinoputika, kupfura kuputika, kuputika-ngura pendi, zinc yakarongedzwa, zinc yakadzvanywa, inotonhora uye inotonhora uye inotonhora uye inopisa uye inopisa dip yakadzika
NACE Mr0175, Ultrsounic bvunzo, charpy yekuyedza bvunzo, macro, hick, hic, a yekudzora, nt yekudzora,
ASTM A335 Seamless Steel pombi inowanzo kutaurwa sezvinoita chrome molybdenum pombi ine makemikari zvinhu molybdenum ne chromical. Molybdenum inogona kuvandudza zvivakwa zvakadai sesimba, elastic muganho, pfeka kurwisa, kukanganisa kuramba uye kuomarara.
Iyo 904L Giredhi Stainless Simbi inoshandiswa zvakanyanya kune akasiyana siyana ekutengesa zvinangwa uye anozivikanwa nekuda kweiyo leabresion anodzivisa zvivakwa. Iyo AISI 904L Stainless Steel Hex Nuts dzinouya neLower Carbon Zvemukati, zvakaderera se 0.02%, izvo zvinoita kuti vadzivise kunyepedzera nekuwoneka. Mune mamwe mazwi, iyo unt s08904 tsvimbo yakatemwa uye mamwe midziyo yeiyo yakafanana simbi giredhi inokonzeresa kupindirana corros.

ASTM A316 TP316 chiitiko chakajairika chechisema, seam yakakwira, uye inotonhora yakashanda yakashanda muAustenitic isina mapaipi ebundu uye general corrorive. Pombi 316 isina kugadzirwa yeindasitiri yakagadzirwa kubva musanganiswa weChromium, Nickel, uye Molbdenum, iyo inopa SS 316 seamless tube yakanakisa kuramba uye ngura.
Kurovera, Drill, punch, jecha rinoputika, kupfura kuputika, kuputika-ngura pendi, zinc yakarongedzwa, zinc yakadzvanywa, inotonhora uye inotonhora uye inotonhora uye inopisa uye inopisa dip yakadzika
NACE Mr0175, Ultrsounic bvunzo, charpy yekuyedza bvunzo, macro, hick, hic, a yekudzora, nt yekudzora,
ASTM A335 Seamless Steel pombi inowanzo kutaurwa sezvinoita chrome molybdenum pombi ine makemikari zvinhu molybdenum ne chromical. Molybdenum inogona kuvandudza zvivakwa zvakadai sesimba, elastic muganho, pfeka kurwisa, kukanganisa kuramba uye kuomarara.
Iyo 904L Giredhi Stainless Simbi inoshandiswa zvakanyanya kune akasiyana siyana ekutengesa zvinangwa uye anozivikanwa nekuda kweiyo leabresion anodzivisa zvivakwa. Iyo AISI 904L Stainless Steel Hex Nuts dzinouya neLower Carbon Zvemukati, zvakaderera se 0.02%, izvo zvinoita kuti vadzivise kunyepedzera nekuwoneka. Mune mamwe mazwi, iyo unt s08904 tsvimbo yakatemwa uye mamwe midziyo yeiyo yakafanana simbi giredhi inokonzeresa kupindirana corros.

Nickel-Conver-based Alloy 400 Mazoni 2.4360 Cold Dy Dhizaina Immuney Immuney Hurlis-Corros Interness yekunetseka painenge ichisimbisa midhiya mune yakajairana nenhamba. Monil 400 is a copper uye nickel yakavakirwa alloy iyo inozivikanwa nhasi nekuda kwekuita kwayo kwakanyanya. Iyo Alloy ine yakanaka acid uye alkali kuramba. Mukuwedzera, ine simba rakanaka rakafanana, ductility, dhiziri rakanaka, uye rinogona kuomeswa nebasa rinotonhora. Pamusoro pezvo, inogona kushandiswa mune zvekushandisa nekupisa kubva kuIns kusvika ku533 degrees Celsius.

Vagadziri veMugadziri Test Setifiketi sePer en10204 3.1, 3.2 \ / Laboratory Test Setifiketi kubva kuNABL yakatenderwa lab. \ / pasi pechitatu bato rekuongorora sangano senge SGS, TUV, DNV, LLOYDS, Abs, Bureau of Indian Stuales Bis akabvumidzwa etc.

ASME B16.48 Kurumidza Holloy Alloy C2000 Flat Flanges Stockholers Alloy C2000 C2000 LAPL JOPT FLANGES

304 Kupwanya mahwendefa kunoitwa makumi matatu nemashanu simbi, zvinhu zvakajairika uye zvakakurumbira muzvinyorwa zvakawanda zveindasitiri izvo zvinoda kuramba kupokana neoxdion uye oxidation. Aya maS30400 kupaza mahwende ekupaza anogadzirira uchishandisa hunyanzvi hwemachina uye maitiro, ayo anoona kuti vakanyatsojeka uye vakavimbika.
ASME SB54 Alloy 400 Plate Flanges Monel 400 N04400 orifence Flange iyo Monel 400 Mahara Anoratidza Ufakazi Akanaka. Kune rimwe divi, zvivakwa zvakadai sesimba uye kuomarara kweManeji 400 Lap Joint Flange kunongopera zvishoma nezvishoma nezvimwe zvinhu zvakaita sekusagadzikana kana kukanganisa.
Nickel Alloy 400 uye Monil 400, inozivikanwawo seMunyuti N04400, iri DUCTICE ANICEL-BEPHER AllEY INYKEL NYKEL uye yechitatu-yechitatu yengozi. Nickel Alloy 400 inozivikanwa nekudzivirira kwayo kune akasiyana mamiriro ezvinhu akaora, kusanganisira Alkalis (kana acids), mvura yemunyu, hydrofluor acid, uye sulfuric acid. Sezvo Monil 400 kana Alloy 400 isimbi inotonhora yakashanda, uyu mutero ane kuomarara kwakanyanya, kuomarara nesimba. Nekutonhora

Nenzira - Rori \ / Rovedza Mutakuri, neGungwa - Bulk Comment Old \ / Yakakura Container

A789 unt s31803 uye unt S.2205205 ​​makumi maviri emakiredhi eDuplex Spainless Simbi iyo inoshandiswa zvakanyanya mune dzakasiyana siyana maindasitiri. Idzi duplex s3118803 mapepa asina masevedza anozivikanwa nekukora kwavo kwakanyanya kupesana, simba rakanyanya, uye rakanaka kwazvo. A789 ndeyekutaura iyo inovhara masapu uye yakavezwa mabhebhu yakagadzirwa kubva kuDuplex Spainless Simbi.

Nickel 200 inodonha iyo Nickel 200 malipi anokwenenzverwa, akaiswa pasi, uye iva nekupera kwakanaka. Zvakare, iyo ASTM B564 UNONS N02200 Flanges inopesana neCollan yekuita Corrosion mukurerekera uye exidiing nharaunda, kuita kuti vave vakakwana pakubata kwemidziyo yekubata.

Zvimwe zvezvikumbiro zvaro ndezvekuva zvizvarwa zvechizvarwa, pulp uye mapepa endasitiri, simba Offshore mafuta anokwezva indasitiri, yakakosha makemikari uye mishonga yemishonga. Zvimwe zvinoshandiswa zvinowanikwa kuti zvishandiswe ndezvekudzungaira, gasi kubata, makemikari emidziyo, zvishandiso zvegungwa, mishonga yemishonga uye yekushambadzira yekutsinhana.

Pamusoro pezvo, zvinhu zveAlloy zvinoita sarudzo yakanaka kwazvo yegungwa, kusanganisira kusununguka kubva pakurwiswa kwenzvimbo.

Yedu hex nuts yakasimba kwazvo uye yakakodzera kune yemukati uye kunze kushandiswa kwekunze. Iyi simbi isina tsvina yakakwirira kune yakajairika simbi uye inopa zvakanakisa kurwisa kupesana.

Alloy Steel Aisi 4140 Bar Stock kana Anokanganwira Stock Kuti Uburitse B7 Yakatungamirwa uye isina musoro. A193 Giredhi B7 ndiyo inonyanya kushandiswa blt spection yakasarudzika nea194 giredhi 2h nzungu zveBolting carbon Steel. A193 B7 Kubhururuka kunowanikwa muMetric Saizi kubva kuM1 kusvika M180 uye Imperial saizi kubva 1 \ / 4 kusvika 7 inches, mune diameter.

Iyo inoshandiswa zvakanyanya muBegshore mafuta uye gasi kuongorora \ / / kugadzirwa uye mune yekushambadzira kuchinjanisa muPetrochemical \ /Memical kugadziriswa.

Inconel mazana matanhatu emasaini emasumbo extucum yetube of standard unt n06600 uye ASTM

Kurumidza C276 Birs Alloy C-276 ine yakanaka phosphoric acid kuramba zvachose tembiricha pazasi pekuvhara pfungwa uye kutarisisa pazasi 65%.

Iyo flange ndeyechipiri inonyanya kushandiswa nzira yekubatanidza mushure mekungoda. Mahara anoshandiswa kana majoini achida kushungurudzika. Inopa kuchinjika kwekugadzirisa. Flange inobatanidza pombi nemidziyo dzakasiyana siyana uye mavharuvhu. Kurambana kwekupwanya kunowedzerwa mune pombi system kana kugara uchichengetedzwa mukati panguva yekuvhiya kwekushandisa.

Iyo gadziriro yezvinhu zviri mumapato enguva ino inoratidza kuti zvinhu zvinoenderana sei nemumwe chemakemikari. Sezvazviri pakati petafura, isu tinoziva Titanium inoratidza zvivakwa pakati peiyo simbi uye isiri yesimbi.

Inconel 625 Coil inoonekwa nekukanganisika kwaro kurwisa oxidation, yakakwira-tembiricha corroson uye kupera simba. ASTM B443 Uns n0662 incangen Plate inoshandiswa zvakanyanya muAerospace, maindasitiri emakemikari uye maaini uye kuoma uye kuomarara uye kusimba kunyange munzvimbo dzakanyanyisa.

Type 316 \ / / / 316l ndeye chrromium-nickel Austenitic simbi isina molybdenum. Kuwedzerwa kweMolybdenum kunovandudza kurwisa kweCorrosion kuenzaniswa ne304 \ / 304l munzvimbo dzekureba uye mukuderedza aclids yakadai seSulfuric uye phosphhoric acid. Type 316L inogona kuve yakasarudzika se136 apo iyo mimhanzi ichisangana necarbon yakaderera mugari we336L uye iyo yakakwira zvakanyanya simba chikamu che316.

Yakagadziriswa-Kuwedzera Girazi-Yakacheneswa Iron-Nickel-Cobalt Alloys, gadzira mutsara wekuwedzera anowedzera kufanana neiyo yegirazi rakaoma mukati meimwe tembiricha yekupisa

Inconel unt n07718 concentric kuderedza majoini anoshanda nekukurumidza panguva yekucheka, uye anodziya kusimba kwekutadza kusimba kwesimbi nekuda kwesimba rayo rakakwirira. Mhando dzese dzeconey 718 butt weld fittings dzakabatanidzwa mumhando dzakasiyana uye maumbirwo, uye isu tinogonawo kuchigadzira kune vatengi veduwe madzishe ezvinhu.

ASTM A105 Flanges Kutarisana
www.tourpa.es
Welded Tube
musiport.com
Kovar Alloy 4J29
Yakatemerwa Magumo, Kupera Kwemugumo "
Stainless Simbi Mahwendefa & Masheets & Coils
Simbi Bars & Rods
Simbi mahwendefa & mashitsi & coils
Inconel 625 hex bar yakatanhamara jou corrostion kupesana
ASTM A105 Flanges Kukosha Kwekuwedzera Services

Kurumidza kuC2000 kunowanikwa mune dzakasiyana-siyana saizi uye gobvu, rudzi urwu rwechromini-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum-molybdenum

S.2750 S32760 Super Dupplex Stainless Simbi Mapipi ane Akanaka Pipping Potting Potting Romsance

Mapuro 254 mapepa anogona kutsungirira kushushikana kwakakwirira uye alloy 254 sm

Sch40 Monil 400 Pipe yakasarudzwa seWerkstoff Nhamba 2.4360 uye uns n04400. Alloy 400 pombi inozivikanwa seMameni Alloy 400 Pipe, Mhel 400 pombi & Nickel Alloy 400 pombi.

ASME B16.5, ASME B16.47 Series A, Asme B16.47 Speries B, ASME BSN 1531-2576, Din 2527, Din 2565-2566, Din25062, Awa, as2129 tafura c, d, e, f, j etc ..

Alloy 625 (unt n06625) is nickel-chromium acromoy inoomeswa nekuwedzera kweMolybdenum naNiobium, saka iyo galloy haidi kuve vakwegura. Iyo ine simba rakanakisa kune dzakasiyana siyana dzakashata nharaunda uye iyo yakanyanya kupisa mhedzisiro ye oxidation uye carburization.
ASTM A105 Flanges Kutarisana
www.tourpa.es
Welded Tube
musiport.com
Kovar Alloy 4J29
Yakatemerwa Magumo, Kupera Kwemugumo "
Stainless Simbi Mahwendefa & Masheets & Coils
Simbi Bars & Rods
Simbi mahwendefa & mashitsi & coils

Kirasi Kuzivikanwa kwakanyanya kwekushora kwaro kupesana nekudzora media uye mvura yegungwa, Monil 400 zvakare inosundira zvakare mune ye oxidiing nharaunda kupfuura yemhangura alloys. Zvakare zvinozivikanwa seAlloy 400, Monil 400 Flangs anoshandiswawo mukudziya kwakanyanya, caustic uye munyu mhinduro dzekushandisa.