Sipesifikesonu yii ni lati pese boṣewa iṣelọpọ fun eto opo gigun ti epo lati gbe omi, gaasi ati epo ninu epo ati awọn ile-iṣẹ gaasi adayeba.
Awọn ipele sipesifikesonu ọja meji wa, PSL 1 ati PSL 2, PSL 2 ni awọn ibeere dandan fun deede erogba, lile ogbontarigi, agbara ikore ti o pọju ati agbara fifẹ.
Ite B, X42, X46, X52, X56, X60, X65, X70 ati X80.
Cangzhou Spiral Steel pipes Group co., ltd pese awọn paipu SAWH ti o bo ipele lati API B si X70, a ni ijẹrisi API 5L awọn ọdun ṣaaju ati ni bayi awọn paipu ila wa ni lilo pupọ nipasẹ CNPC, CPECC fun awọn iṣẹ opo gigun ti epo wọn.