Hongxin 69KV 70FT Hot Dip Galvanized Direct Buried Transmission Steel Pole with Bitumen Anti-Corrosion Painting Material Raw material of general-purpose steel GB/T1591-2008, Q255, Q355, Q420, Q460 ...Xem thêm
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Hongxin 69KV 70FT Hot Dip Galvanized Direct Buried Transmission Steel Pole with Bitumen Anti-Corrosion Painting