Special-shaped Carbon Steel Flange wholesale
We belong to the national standard flange, the flange is interchangeable parts, all kinds of flange holes, center distance, outer diameter, inner diameter, thickness and so on are all standard, common flange standard HG/T 20592-20592, JB/T 81-94, GB/T 9119-2000, and so on.And national standard of the flange to consider the safety factors, so the size and thickness of safety margin is larger.In addition to the national standard flange, there are two standard flange believe you've heard, is the flange diameter and the thickness of the flange are better than national standard of the flange diameter and small thickness of 3 mm.This kind of flange is commonly used in pipeline engineering of pressure is not high, price is low.In addition to the national standard flange with two standard flange, non-standard flange the word you heard?(Special-shaped Carbon Steel blind Flange wholesale)