Steel Pipe, Aluminum Coil, Galvanized Steel Coil manufacturer / supplier in China, offering Factory Direct Sales High Quality API 5L Line Pipe for Oil and Natural Gas Industry Enterprises, API 5L Line Pipe Seamless and 20# 10# 35# 45# Welded for Oil and Natural Gas Industry Enterprises, HRB400 HRB500 High Strength Steel Reinforcing/ Rebar for Construction Hrb Standard and so on.
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