Elastic spiral screw protective cover

The exterior of this product is made of three proof cloth and oil resistant rubber, without sand holes.
1. It can prevent dust, water, oil, emulsion, and chemicals,
The external fabric is a three proof fabric with a hard steel wire ring support inside, which can work normally between high temperature of 110 ℃ and low temperature of -40 ℃.
If diameter and length are required, it is up to the user. The usage range of this product is 120mt/min.