Heat exchanger seamless steel tube

Heat exchanger seamless steel tube main steel 10、16Mn、210C、20G、15CrMoG、12Cr2MoG、12Cr5MoG、12Cr9MoG、T11、T22、T5、T22、T9、T91. production standard GB6479《Seamless steel tube for high pressure fertilizer plant》 GB9948《Seamless steel tube for petroleum cracking process》 ASME SA213《Seamless ferrite and austenitic alloy steel tube for boiler, super heater and heat exchanger.》 specification and dimension External diameter Φ19-Φ89mm、Wall thickness 2-10mm、Length 3~22m