Shanghai ShengQiu supplies seamless steel tube for heat exchanger & boiler as below:
SA 213 T5/ T9/ T11/ T12/ T22/ T91
SA 335 P5/ P9/ P11/ P12/ P22/ P91
SA 334 Gr.1/ Gr.3/ Gr.6
SA 209 Gr.T1a/Gr.T1
SA179/ SA192/ SA210 Gr.A1/ SA210 Gr.C
DIN17175
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