The external of this product is made of nylon material without any air pores. It
is anti-dust, anti-water, anti-oil and anti-chemicals. Nylon leather is used for
the exterior and PVC plate and steel supporting ring for the interior. It can work
properly at temperatures ranging from -40°C to 110°C. Diameter and length
can be made according to customers' requests. This product is used in a range
of 120MT/minute.