Double-Wall Corrugated Pipe Extrusion Line Qingdao Zhongkaida Plastic Machinery Co., Ltd. Base Info Model NO.：ZKD-SBProduct Type：Plastic Composite PipeScrew No.：Double-screwAutomation：AutomaticComputerized：ComputerizedCustomized：CustomizedCondition：New Description Pre：Single-Wall Corrugated Pipe Extrusion Machine Next：Pet Washing Line
