The classification of the steel flanges

　　1, according to the chemical industry (HG) norm: integral steel flanges (IF), threaded steel flanges (Th), plate flat welding steel flanges (PL), with butt welding neck steel flanges (WN), with flat welding neck steel flanges, socket welding steel flanges (SO) (SW), the butt welding ring loose steel flanges (PJ/SE), flat welding ring loose steel flanges (PJ/RJ), lining steel flanges cover (BL (S)), blind flange.

　　2, according to the petrochemical industry norm (SH) : threaded steel flanges (PT), butt welding steel flanges (WN), flat welding steel flanges (SO), socket welding steel flanges (SW), loose steel flanges (LJ), steel flanges cover (not table).

　　3, according to the machine (JB) industry norm: integral steel flanges, butt welding steel flanges, plate flat welding steel flanges, butt welding plate loose steel flanges rings, flat welding ring plate loose steel flanges, steel flanges ring plate loose steel flanges, steel flanges cover.

　　4, according to the national (GB) norm: integral steel flanges, threaded steel flanges, butt welding steel flanges, with flat welding neck steel flanges, socket welding neck steel flanges, butt welding band neck loose steel flanges, plate, flat welding steel flanges, butt welding plate loose steel flanges rings, flat welding ring plate loose steel flanges, steel flanges ring plate loose steel flanges, steel flanges cover.

　　We have adopted advanced production equipment and technologies to manufacture our pipe flanges and  flanges, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.