大口径胶管内径（mm）夹布层数（层）螺旋钢丝直径（mm）管接头长度（mm）胶管长度公称尺寸公差尺寸公差尺寸（mm）公差（mm）381.2232.0751010150511.2342.61001510150641.5342.61001510150761.5452.61001510150891.5453.210015101501022.0453.212520101501272.0563.212520101501522.0564.015020101502032.5675.020025101502542.5785.020025101503052.5785.02502510150)