層)螺旋鋼絲直徑(mm)管接頭長(zhǎng)度(mm)膠管長(zhǎng)度公稱尺寸公差尺寸公差尺寸公差381.2232.0751010150511.2342.61001510150641.5342.61001510150761.5452.61001510150891.5453.210015101501022.0453.212520101501272.05 63.212520101501522.0564.015020101502032.5675.020025101502542.5785.020025101503052.5785.02502510150