Don ƙarfafa da taurare da kuma jefa baƙin ƙarfe alloy carbon karfe zamewa a kan flanges an yayyana cikin tsari da aka sani.
Babban ingancin Astm Astm A105 Pipan bututu na masana'antun a Indiya, muna bayar da flanges mai fall a cikin daban-daban kamar, BS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JIS, JISH.