Automatically Drilling machine For PVC Pipe   Drilling Machine For PVC Pipe Model Specification         Standard Specification: 4M~6M all of PVC pipes are available. Drilling Specification: 3/8"~1"     Drilling Machine With Slot Type Model Specification         Standard Specification: 4M~6M all of PVC pipes are available. Drilling Specification: 2.2m/m x 100m/m x 3     ◎ Patent Pending ◎ -------------------------------------------------------------------------------------------------------