ST811HS:Rubbermodifiednylon6resin.Veryflexible.(橡胶改性尼龙6树脂。非常灵活)WRF101A:Zytel®WRF101AisanunreinforcedlubricatedPA66resinmodifiedforexcellentflowandimprovedwearandfrictioncharacteristics.(Zytel®WRF101A是一种无筋润滑尼龙66树脂良好的流动和改进磨损和摩擦特性修改))