All production parts are selected according to the specified physical and chemical conditions and are able to withstand fatigue, cutting, stretching, wear, temperatures up to 250 degrees Celsius and chemical environments (acidic, alkaline, oil, etc.) is. Rubber polymer base: …, NBR, SBR, PBR, SILICONE, VITON, NR, HYPOLON, CR, BUTYL Plastic polymer base: …, PTFE, PP, PU, PVC, PE, PA, PC, HDPE , LDPE, PS, if necessary (according to the work performance) are reinforced by Manjid layers or Teflon coating is used to resist chemicals.