hebei zhonghai steel pipe manufacturing co,.ltd

seemless pipe ,erw p(1)

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steel pipe
Specification: 76-630mm
Detail: 1. SEEMLESS STEEL PIPE: size: 76mm-630mm material: 10# - 20# etc . standard: GB8162 (structural pipe) GB8163 (fluid pipe) DIN1626,1629,17175, ST35.8 (German standard) ASTM A 106 B/A53 B, etc, foreign standard. 2. Straight We...


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