... Length-3~12.5m Wall Thickness-6~50mm Standard-API 5L, ASTM A252,ASTM A672,ISO3183 Advantages: Our company uses the ... steel pipe. The product line adopts PID automatic controlling continuous J-C-O forming technology, and the advantages of the product ... ,X42,X46,X52,X56,X60,X65,X70,X80,etcStandardAPI Spec 5L(PSL1,PSL2), ASTM A252, ASTM A672, ISO3183, etcAnnual Output150,000 ...