| Country: |
China |
TianJin
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| Company: |
tianjinyilidagangguanyouxiangongsi |
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| Address: |
tanshenlu8hao |
| Contact person: |
fenggangqu nan |
Tel: |
86-22-68586875 |
| Email: |
qfg2008@yahoo.com.cn |
Fax: |
86-22-68586636 |
| Website: |
http://www.tjyldgg.com |
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| Content: |
This factory production sells 219-1420X5-14MM (spiral steel pipe), the product uses the American Lincoln welding machine entire line automatic two-sided submerged-arc welding to meet, execution international GB/T9711.1--1997 and petroleum natural gas profession standard SY/T5037-2000,SY/T5040-92 carries on the production, and has X射线, the ultrasonic wave and the still water pressure carry on the e |
