1. Material: MC nylon, OILON, PA6, PA66. 2. Properties: heat resistance, wear resistance ... .05-1.15. Copper pipe can be replaced with nylon directly to the liquid flow, and freedom of bending ... according to user needs.Application Nylon is best for large gears, worm gear, bushings, ... outside diameter less than or equal to the diameter of rod is 1 / 3 of the drill hole (but ...