... & natural gas, casing pipe serves as well as.ASTM A106 For the purpose of the pipeline project of boiler, water & petroleum ... heat exchanger and similar heat conveying equipments.ASTM A192 For manufacture wall panel, economizer, reheated, superheated and steam pipeline of boilers ... Painting: can be required. 8)Application:1. API SPCE 5L For the purpose of transportation of gas, water, oil industry. API ...