Mechanical pipes
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Seamless carbon steel and alloy mechanical tubes
Seamless steel tubes, Carbon steel pipe and alloy mechanical tubes ,mainly for mechanical in ASTM A519-2006 Standard,alloy mechanical tubes mainly include
1018,1026,8620,4130,4140 etc.
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20# Steel Pipe
High-Quality Carbon Steel Heat-Resistant Seamless Pipe For Construction Structure and Mechanical Strucutre. Material is 20#, high quality carbon steel, it is a common steel pipe material.
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Seamless steel tubes for coal mining- GB/T 17396-2009
Seamless steel pipe for coal mine is mainly used to manufacture seamless pipe for
hydraulic prop in coal mine.