ʻO kēia kikoʻī e hāʻawi i ka maʻamau hana no ka ʻōnaehana pipeline e lawe i ka wai, ke kinoea a me ka aila i loko o nā ʻoihana aila a me nā ʻoihana kūlohelohe.
ʻElua mau pae kikoʻī o ka huahana, PSL 1 a me PSL 2, PSL 2 nā koi koi no ka carbon equivalent, notch toughness, maximum yield strength and tensile strength.
Papa B, X42, X46, X52, X56, X60, X65, X70 a me X80.
ʻO Cangzhou Spiral Steel pipes group co., ltd hāʻawi i nā paipu SAWH e uhi ana i ka papa mai ka API B a i ka X70, ua loaʻa iā mākou ka palapala hōʻoia API 5L i nā makahiki ma mua a i kēia manawa ua hoʻohana nui ʻia kā mākou paipu laina e CNPC, CPECC no kā lākou papahana pipeline.