Ginde Plastic Industry Linyi Agency (Hedong Tuza Comprehensive Zhongxindian)

Jinxiang Tube Industry (Hedong Tuza Comprehensive Zhongxindian)

Surpass Water Pipe Daquan

Longda Pipeline Tool

Yuanwei Tube Industry

Shandong Huizhong Plastic Tube Industry (Hedong Tuza Comprehensive Zhongxindian)