... valve and especially in paper-making industry . Structure(code):B5426:Acrylic fibre is impregnated with special impregnating agent and braided ... and black special lubricant is added during braiding.B5426/R:It is B5426 packing with elastic silicone rubber core ,wich ... neutral media because its very lowWorking condition: TypeB5426 and B5426/RB5401PH5~115~11Max temperature°C-50~+150-50~+150pressure ...