Zhongyun Science and Research Co., Ltd. is a wholly-owned subsidiary of Zhongyun Group, Zhongyuntech can provide customers with comprehensive technology and solutions for the production of plastic pipes. Its main scope of business is developing and manufacturing series ofPE/PP/PVC double wall corrugated pipe production linewhich can be used to produce PE/PP/PVC double wall corrugated pipes with diameter from 50mm to 2,400mm, series of PE/PP/PVC solid wall pipe production line which can be used to produce PE/PP/PVC solid wall pipes with diameter from 16mm to 1,600mm, as well as other plastic pipe production line