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Wysyłka:快递
Wprowadzenie produktu
Structural seamless steel pipe GB/T8162-2018 is mainly used for general structure and mechanical processing. Its representative material (grade) : carbon steel 20#, 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.