High-Efficiency Spiral Steel Pipe for Heat Exchange API 5l x70 psl2 dn500 spiral welded steel pipe,ssaw steel pipe 800mm for gas delivery Product Specification: Standard: API 5L, API 5CT, ASTM 53, ...مشاهده بیشتر
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High Efficiency Spiral Steel Pipe L290 EN10217 Spiral Metal Tubing For Heat Exchange