Durable & Reliable Spiral Steel Pipe, Diameter Range From 6-20 Inch Product Description Main Application: 1. Piling pipe; 2. Construction; 3. Water, Oil, Gas transportation; 4. Hydropower station pipe ...ดูเพิ่มเติม
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6m-18m SSAW Spiral Welded Steel Pipes Metal Spiral Tube For Hydropower Station Pipe