... protective 2)ABB converter,OMRON,SHNEIDER PP PE PVC corrugated pipe production line: It can be used to produce corrugated pipes of ... conditioner and washing machine, etc. Plastic single-wall corrugated pipe production line developed by our company adopts gears to run moulds and ... high-speed molding, even corrugation, smooth inner and outer pipe wall. These corrugated pipes are especially used as wires ...