The knowledge of variable flange and butt welding flange..

Nonstandard flangeGerman standard: DIN2573, 2572, 2631, 2576, 2632, 2633, 2543, 2634 and 2545 (PL, SO, WN, BL, TH)Ministry of chemical industry standards: HG5010-52 to HG5028-58, HGJ44-91 to HGJ65-91,..

Forging welding flange welding flange plate GB PN10RF 304 stainless steel flangeThe mechanical properties of forged flange is a flange in the product the best products, its raw materials are generally..

High pressure flange steel gate valve is suitable for cutting or connecting medium on the pipelines of various working conditions such as the nominal pressure PN10.0 ~ 25.0Mpa, working temperature - 2..

Jiangsu SA335P91 spot P91 seamless pipe P91 alloy pipe P91 boiler pipe manufacturer SA335P91 steel pipe spot SA335P91 chemical compositionChemical composition confirmation of P91 steel, chemical compo..

Generally, the service temperature of 9948 oil cracking pipe is below 450 ℃, and the domestic pipe is mainly made of No.10 and No.20 carbon steel hot-rolled pipe or cold drawn pipe.② 9948 oil cracking..

ASME seamless steel pipe: American seamless steel pipe is mainly used to manufacture superheater, reheater, water wall, economizer, etc. of supercritical or ultra supercritical boiler. The steel pipe ..

Heat exchange tube 1. Overview(1) Manufacturing method:① Generally, the service temperature of boiler steel pipe is below 450 ℃, and the price of 9948 heat exchange pipe. The domestic pipes are mainly..

42CrMo steel is an ultra-high strength steel with high strength, toughness and good hardenability. Purpose of 42CrMo seamless steel pipe: the special steel used for bridge is "42CrMo", the special ste..