| spiral pipe(ssaw) length: 12m OD: 219-1820mm WT: 6-18mm Standard: API-5L, GB/T9711.1-1997, SY/T5037-2000, SY/T5040-2000 If you are interested in our products, please contact us. kevin zhang phone:+86-15022293292 fax: +86-22-68589500 E-mail: zhang_hairui (at) yahoo.com.cn MSN: zhang-hairu (at) hotmail.com TianJin YouLian Spiral pipe |