Standard:BS, GB, DIN, ASTM, API
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Low and medium pressure boiler seamless steel pipe knowledge--51 steel pipe network to provide low and medium pressure boiler seamless steel pipe: used to manufacture a variety of low and medium pressure boilers, superheated steam pipe, boiling water pipe, water wall pipe and locomotive boiler superheated steam Pipes, smoke...
The difference between 45# seamless steel pipe and 20# seamless steel pipe 45# seamless steel pipe and 20# seamless steel pipe have different main carbon contents. 45# carbon steel content is 42-48, and 20# steel pipe is 18-22. Followed by 45 # seamless steel pipe and 20 # seamless steel pipe tensile strength and hardness...
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