Renaissance Biochemicals Pvt. Ltd.is the leading supplier and exporter of Seamless Carbon Steel boiler tube which are made from high quality raw materials..Specification:Standard Specification for Seamless Carbon Steel Boiler Tubes for HIGH Pressure Service)Size Ranges : ½†to 7â€Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier