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