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 @2013-01-11 07:12:17