hanguan

T3091-2001 (GB/low-pressure liquid transportation with galvanization steel tube welding. Mainly used for water, gas, oil and heating air, hot water or steam etc generally low pressure flow and other purposes. The representative of Q235A: steel. GB/T14291-2006 (mine fluid transmission of welded tube). Mainly used for mine drainage, axial compressive wind, put in straight stitch welding gas pipe. The representative Q235A material, grade B steel. T14980-1994 (GB/low-pressure liquid transportation with large diameter erw tubes). Mainly used for conveying water, sewage, gas and steam heating air, etc. And low-pressure fluid, The representative Q235A steel material. T12770-2002 (GB/mechanical structure in stainless steel welded pipe). Mainly used in machinery, motor cars, bicycles, furniture, hotel and restaurant decoration and other mechanical components and parts. The representative 0Cr13 material, 1Cr17, 00Cr19Ni11, 1Cr18Ni9 0Cr18Ni11Nb, etc. T12771-1991 (GB/fluid with stainless steel welded pipe) transmission. Mainly used to transport corrosive medium voltage. Representatives for 0Cr13 0Cr19Ni9, material, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb 0017Cr17Ni14Mo2, etc. Otherwise, the adornment with welded stainless steel tube (GB/T 18705-2002), building decoration with stainless steel welded pipe (JG/T 3030-1995), low liquid transportation with large diameter erw tubes (GB/T 3091-2001), and the use of welded tube heat exchanger (YB4103-2000).