GB / T3091-1993 (Galvanized welded steel tubes for low pressure fluid delivery). Mainly used for conveying water, gas, air, oil and heating water or steam and other general low pressure fluid and other purposes tube. Its representative material Q235A grade steel.
GB / T3092-1993 (Galvanized welded steel tubes for low pressure fluid delivery). Mainly used for conveying water, gas, air, oil and heating water or steam and other general low pressure fluid and other purposes. The representative material is: Q235A grade steel.
GB / T14291-1992 (Mining fluid transport welding steel pipe). Mainly used for mining pressure air, drainage, gas discharge shaft with straight seam welded steel pipe. Its representative material Q235A, B grade steel. GB / T14980-1994 (Large Diameter Electric Welded Steel Pipe for Low Pressure Fluid Transportation). Mainly used for conveying water, sewage, gas, air, heating steam and other low-pressure fluid and other purposes. Its representative material Q235A grade steel.
GB / T12770-1991 (Stainless steel welded structural steel pipes). Mainly used for machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical parts and structural parts. The representative material 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb and so on.
GB / T12771-1991 (Stainless steel welded steel tubes for fluid delivery). Mainly used for conveying low-pressure corrosive media. Representative material is 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2 and so on.
