综合access road检修通道atmosphere大气压ccddbag-shape pipe袋型管branch(branch pipe)支管(分管)buried piping埋地管道by-pass pipe旁通管(旁路)coil盘管composition of factory water -supply system厂区给水系统组成composition of indoor hot
综合access road检修通道atmosphere大气压bag-shape pipe袋型管branch(branch pipe)支管(分管)buried piping埋地管道by-pass pipe旁通管(旁路)coil盘管composition of factory water -supply system厂区给水系统组成composition of indoor hot-wat
综合access road检修通道atmosphere大气压bag-shape pipe袋型管branch(branch pipe)支管(分管)buried piping埋地管道by-pass pipe旁通管(旁路)coil盘管composition of factory water -supply system厂区给水系统组成composition of indoor hot-wat