Deskripsyon kout:

Non: LSAW Steel PipesStandard: API 5L PSL1, ASTM A53, ASTM A252, SY/T5037, SY/T5040, DIN 30670 Materyèl: ASTM A252 GR.1—3，SS400, ST37, ST52, Q235, Q GRA45, API GRA45. , GR.B Spesifikasyon: OD: 219.1mm-2320mm Mi epesè: 5mm-24mm Tretman andigman: galvanize, 3-KOCH PE, FBE, lak, vèni