China 3PE Coating API 5L Standard Spiral Saw Welded Steel Pipes We have 5 spiral submerged arc welded steel pipe production lines, which use leading facilities such as Lincoln automatic submerged-arc
solder,on-line digital ultransonic flaw detector,hydraulic compression testing machine,x-radiation real time imagery,computer control universal testing machine and Charpy impact tester,to guarantee
the product quality.Because of the strict quality control system,all of our product have passed the test of
Post by Max Liu Security & Protection @2013-04-25 05:26:02