General rubber products Co., Ltd. is specialized in manufacturing all sires of butyl inner tubes, natural rubber tubes and flaps, located in Zhengzhou City, which is in the center of China. Sincere service and high quality is our external pursuit. We are serving our customers all over the world.For years, committed to the operation idea of “We for Market and Market for Us” and the working principle of “Honesty, Efficiency, Innovation and Pragmatism”, relying on highly experienced sales gr...View More