专利号ZL 2008 1 0187504.3 多壁层间中空塑料保温、保冷管道新型专利项目 CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE - THE CITY - GLODEN AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE CITYNEW AGE FIELDSWEET TIME SEAFREE SIDE ROADNEW AGE