Different Color HDPE Double Wall Corrugated Pipe Machine Jiangsu Goldmoon Industry Co., Ltd. Base Info Description Model SBG110SBG160SBG200SBG250Applicablepipe OD50-110 50-160 110-200110-250Extruder SJ60/30 SJ65/30+65/28 SJ75/30+65/30SJ75/30+65/30 Pre:Lab Rubber Two Roll Open Mill /Rubber Mixing Machine Next:50-250mm Drainage Plastic Double Wall PE Corrugated Pipe Production Line