SSAW pipe :
Size:219~2220. thickness 6mm~20mm
Special size according to demand .
Spec: GB/T9711.2-1999,GB/T9711.1-1999
SY/T5037, ASTM A254 ,API 5L GRADE B~X70
Any Question , pls do not hesitate to call me or write email to contact_jelly@126.com
