The main fluid PU, suitable:: sales come from Japan sold NOK-LBI series is a reciprocation of dust seal, the main criteria for materials outside dust, this product resistant, high temperature, high pressure, which is a prevent dust entering, protective equipment and maintain sealing performance seals, this seal can be transferred to the whole groove is a full polyurethane dust seal, an auxiliary primary dust lip lip, more able to play the anti- Dust intrusion performance, waterproof, also suitable for inside and outside homes, the seal lip seal waist with a groove to prevent the squeeze, many specifications, product range, price advantage, welcome, thank you! ! ! ! ! ! ! ! !