Shandong Zhongzheng Steel Pipe Manufacturing Co.,Ltd -

Shandong Zhongzheng Steel Pipe Manufacturing Co.,Ltd

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seamless steel pipe
Specification: ASTM DIN JIS GB
Detail: Steel Pipe (1)Standard:ASTM GB DIN JIS (2)Grade:20# 45# 16Mn J55--- (2) Certificate:ISO&IPA (4)Low price,High quality (5)OD1/2'-14' WTsch10-xxs


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