... & Delivery Packaging Detail: 35kg Or 25kg per bag, With 0.04~0.06mm thickness PE film inside and PP.woven bag ... Name : Supplying Natural rubber Cis-1,4 Poly butadiene rubber BR rubber,Off grade BR9000 1).Advantages:1. High flexibility and ... , sticky tape, seals, shoe soles and other rubber products. 3). BR Performance Parameter Item BR9000volatile,% ≤0.75total ash,% ≤0.3Raw rubber ...