Zhengzhou Humhong Pipeline Kope, Ltd.
Metsu ea la105 Carbon Steel Rooking mekoallo e na le khabone, Manganese, Cohorl, Chrokell le Vamidium.
Tlhaloso ea ASTM A420 e koahela li-carbon tsa will-Steel li tsamaisana le a333 gr.3 le astm a333 gr. 6 liphaephe; Tlhaloso ea ASTM A860, WPHY52, WPHY52, WPHY60) Covers e kholo e koahelang chai e kholo ea croon steel ho tsamaisa lihlahisoa tse phahameng tsa ami 5l gr. X42, X52, X56, X60 ea X60. ASTM A234 WPB PIPB PIPB PIPO e bolela hore phaene e tšoanelehile ka litlolo tsa A234 wpb mme e sebelisoa bakeng sa lits'ebeletso tsa mocheso tse phahameng kapa tse itekanetseng. Asst A234 ke molao oa boitsebiso bo loketseng. WPB ke sehlopha sa tšepe moo w e leng ho pharalla, B ke grading b le p e emela khatello. Kahoo ho buuoa hanyane hanyane hanyane ka hanyane. Astm a234 wpb ke qeto e tloaelehileng ea li-pipi tse kenyelletsang carbon le a sa feleng bakeng sa metheo e tobileng le e phahameng. Asst A234 wpb sch