Custom National Standard Carbon Steel Plate Flat Welding Flange 10KG Forging Steel Pipe Connection Welding Flange 16KG

Custom National Standard Carbon Steel Plate Flat Welding Flange 10KG Forging Steel Pipe Connection Welding Flange 16KG

1. According to HG industry standard: Integral flanges (IF), threaded flanges (Th), flat welding flanges (PL), butt welding flanges (WN), flat welding flanges (SO), socket welding flanges (SW), butt welding ring loose flange (PJ/SE), flat welding ring loose flange (PJ/RJ), lined flange cover (BL(S)), flange cover (BL) [2].
2, according to the petrochemical (SH) industry standard: threaded flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose sleeve flange (LJ), flange cover (note not listed).
3, according to the machinery (JB) industry standard points: integral flange, butt welding flange, flat welding flange, butt welding ring plate loose sleeve flange, flat welding ring plate loose sleeve flange, flanging ring plate loose sleeve flange, flange cover.
4, according to the national (GB) standard: integral flange, thread flange, butt welding flange, neck flat welding flange, neck socket welding flange, butt welding ring with neck loose sleeve flange, flat welding flange, butt welding ring plate loose sleeve flange, flat welding ring plate loose sleeve flange, flanging ring plate loose sleeve flange, flange cover.