... medium and high pressure boiler, marine, fluid transport, petroleum cracking, fertilizer eq Seamless steel pipe steel tubeFor the use of low, ... medium and high pressure boiler, marine, fluid transport, petroleum cracking, ... ASTM A53/106 Gr. B, ASTM A210/192/179, API 5L, API 5CT, DIN 1626/17175Application: used for liquid conveyance, low& ...