Difference between precision and hardness of hot-rolled and cold-drawn seamless steel tubes
Hot-rolled seamless steel pipe is divided into general steel pipe, low and medium pressure boiler seamless steel pipe, high pressure boiler seamless steel pipe, alloy seamless steel pipe, stainless seamless steel pipe, petroleum cracking pipe, geological steel pipe and other seamless Steel pipes, etc. Cold drawn steel pipe is divided into general steel pipe, electric
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