We are a professional factory producing flanges, special flanges, shaft, forgings, and module . Our product are produced with Standards as follows: GB: gb, hb, jb, jb / t, sh, etc. (pn0.6mpa-pn16mpa) American standard: ansib16.5 (150lb-2500lb), ansib16.47 (150lb-900lb), ansib16.36 (150lb-900lb), awwa (classb, d, e), bs.3293 (150lb-600lb), such as German standard: din2573, 2576, din2631-2638, din2543-2545, din2527 British standard, such as: bs4504, bs10 superscript, such as Italy : uni2276-2278, uni2280-2285, uni6090-6095, uni6088-6089 all raw materials are from TISCO, steel, large scale steel factories, the main materials are: carbon steel: q235, 20 #, 16mn, a105, c22.8, c21, rst37-2 and other alloy steel: 15crmo, f11, f22, f50, f60, stainless steel: f304, f304l, f316, f316l, f321, g304, g304l, g316, g316l, g321, 316ti, etc. Therefore, we can make the products according to your requirement. Your enquiry is always welcomed.