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See Chinese contents: GB/T 3087-2022 GB/T 3087-2022: Seamless steel tubes and pipes for low and medium pressure boiler
This document specifies the order content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of seamless steel tubes and pipes for low and medium pressure boilers. This document applies to the manufacture of high-quality carbon structural steel seamless steel tubes and pipes for low and medium pressure boilers; it can be referred to by other seamless steel tubes and pipes for pipelines.
