偏差普通系列（mm）加强系列（mm）公称外径（mm）钢丝最小最小壁厚壁厚偏钢丝最小直径最小壁厚壁厚偏De(mm)直径差差1100.68.500.710.001400.69.000.710.00钢丝网骨架聚乙烯复合管规格参数表长度(mm )1600.69.500.711.002000.610.500.713.002500.7:12.50,0.814.003150.713.500.817.004000.715.500.819.005000.8.22.001.024.009000钢丝网骨架聚乙烯管材公称压力表公称外径De（mm）用途符号110140L 1602002503151400500普通.L、T1.601.0系列R1.250.8Q0.800.6加强L、 T3.502.52.01.6系列R12.502.01.61.0Q1.000.8备注：L-冷水用复合管；R 一燃气用复合管；Q 一燃气用复合管；T 一特殊流体用复合管