How about rubber transfusion hose?
Then the outer layer of glue in the extruder, type coating, and then wrapped with lead or sulfide protective layer can be.
The last step is to protect the sulfide layer to remove the wound hose and then taking care, and pipe fittings withhold, then you can test the pressure sampling
Then, the inner tubing with the core is coiled with copper wire or copper wire rope on the winding machine or the braiding machine. At the same time to pay attention to the winding machine or knitting machine should take the middle sheet winding synchronous glue in each of the two layers of copper wire and copper wire in the middle, and we also pay attention to the beginning and end of winding steel wire binding.
The use of calender will glue paddle pressed into the middle, and then add the separant winding and made in accordance with the provisions of the production process requirements of winding hose cutting width.
In accordance with the mixer developed within the layer, the middle layer and the outer winding hose layer; while using extrusion equipment will soft core inner tubing extrusion and coated release agent in coating or hard core, but should pay attention to the use of liquid nitrogen freezing method can not die.