boiler pipe
boiler pipe
principalis chalybe
20G、15CrMoG、12Cr2MoG、12Cr5MoG、12Cr9MoG、T11、T22、T5、T22、T9、T91
productio vexillum
GB5310《seamless chalybe tube for summus pressura boiler》.
ASME SA213《 Inconsutilem ferrite et austeniticum mixturae ferri tubi pro boiler, super calefaciente et calore commutatoris.