1.pipe line 2.Mainly export to Southeast Asia,Africa,Mid East, ... ,45.8.Application1),API SPCE 5L For the purpose of transportation of gas,water,oill in oil&gas industry.2), API ... casing pipe serves as wall of well.3), ASTM A106 For the purpose of the pipeline project of boiler,water&petroleum.4), ASTM ... For manufacture wall panel,economizer,reheater,superheater and steam pipeline of boilers. pipe line