Cangzhou Bohai Pipe Fittings Co., Ltd., the flange can be divided according to the production of the material: WCB (Carbon), LCB (low carbon steel), LC3 (3.5% nickel steel), WC5 (1.25% 0.5% chromium molybdenum steel), WC9 (2.25% chromium), C5 (5% Cr% Mo), C12 (9% Cr 1% Mo), CA6NM (4 (12% chromium steel), CA15 (4) (12% Cr), CF8M (316 stainless steel) , CF8C (347 stainless steel), CF8 (304 stainless steel), CF3 (304L stainless steel), CF3M (316L stainless steel), CN7M (steel), M35-1 (Monel), N7M (hastelloy B), CW6M (Harstad nickel alloy C), CY40 (Inconel) tube Ltd. Cangzhou Bohai forging large 20 # flange large flange points threaded connection (wire connected) flange and welding flange. Low small diameter wire connection flanges, high and low pressure large diameter flange manufacturers are using the welding flanges 20 #, thickness and diameter and the number of connecting bolts flange different pressures are different. According to different levels of pressure, flange gasket also different materials From low pressure asbestos pads, high pressure asbestos pads to the metal pads are. 1. Material classified carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum flat welding flange 20 #, plastic, argon Ge Lek, ppc, etc. 2. In production methods can be divided into forged flanges, casting flange wholesale 20 # flanges, welded flanges, rolled flange (large number) 3. manufacturing standards can be divided into GB (Ministry of Chemical Industry Standard, Standard Oil, electricity standard), American Standard, the German standard, Japanese standard, the Russian standard, etc. large welded flange can be divided in different ways according to the welding of large welded flange and large welded flanges with a diameter welded 20 # method Portland, Jinan 20 # flanges, Cangzhou Bohai Sea by Cangzhou Bohai Pipe Fittings Co., with a diameter of 20 # welded flanges, Jinan 20 # flanges, Cangzhou Bohai Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) new year Upgrading introduced above picture is for reference only, please call telephone or pictures on this page, for the latest information, contact: Zhangsong Wei.