DN50,2寸管子,內徑50mm,外徑56mm,壁厚3mm,
DN15....4分管子,內徑15mm,外徑23mm,壁厚4m
DN20....6分管子,內徑20mm,外徑27mm,壁厚3,5mm
DN25....1寸管子,內徑25mm,外徑32mm,壁厚3,5mm
DN32....(1由四分子3寸)內徑32mm,外徑38mm,壁厚3mm
DN40....(1由二分子1寸).內徑40mm,外徑48mm,壁厚4mm
DN65....(2由二分子1寸).內徑65mm,外徑76mm,壁厚4,5mm
DN80....3寸管子,內徑80mm,外徑89mm,壁厚4,5mm
DN1OO....(5寸管子,內徑100mm,外徑108mm,無縫管)壁厚4mm
DN1OO....(5寸管子,內徑100mm,外徑114mm,無縫管)壁厚7mm
DN125....內徑125mm,外徑133mm,壁厚4mm
DN150....內徑150mm,外徑165mm,壁厚8mm
DN200....內徑200mm,外徑219mm,壁厚9.5mm
DN250....內徑250mm,外徑273mm,壁厚11,5mm
DN50,2寸管子,內徑50mm,外徑56mm,壁厚3mm,
DN15....4分管子,內徑15mm,外徑23mm,壁厚4m
DN20....6分管子,內徑20mm,外徑27mm,壁厚3,5mm
DN25....1寸管子,內徑25mm,外徑32mm,壁厚3,5mm
DN32....(1由四分子3寸)內徑32mm,外徑38mm,壁厚3mm
DN40....(1由二分子1寸).內徑40mm,外徑48mm,壁厚4mm
DN65....(2由二分子1寸).內徑65mm,外徑76mm,壁厚4,5mm
DN80....3寸管子,內徑80mm,外徑89mm,壁厚4,5mm
DN1OO....(5寸管子,內徑100mm,外徑108mm,無縫管)壁厚4mm
DN1OO....(5寸管子,內徑100mm,外徑114mm,無縫管)壁厚7mm
DN125....內徑125mm,外徑133mm,壁厚4mm
DN150....內徑150mm,外徑165mm,壁厚8mm
DN200....內徑200mm,外徑219mm,壁厚9.5mm
DN250....內徑250mm,外徑273mm,壁厚11,5mm