Is the diameter of the plastic tube 20mm in diameter 18mm?
The diameter 20mm is the outer diameter, and the 18mm is the inner diameter (Kong Jing), then the plastic tube is (20-18) /2=1mm thick tube. This plastic pipe is available, and many plastics pipe manufacturers should be able to produce.
20mm diameter plastic pipes, aperture, 18mm market there are manyFirst of all, look at what material is plastic tubeIf it is PC plastic pipe outer diameter of 20 mm, diameter 18 mm, 1 mm is so kind, this kind of plastic pipe will generally have a spot, also can achieve the customized specifications, can also die if not die
The diameter 20mm refers to the inner diameter of the plastic pipe. 18mm shall also refer to the inner diameter of the pipe.
