High quality products must be inseparable from high-quality raw materials, so high-quality rubber joints must have high-quality raw materials. Shanghai Songjiang group has its own raw material procurement standards for purchasing raw materials. All kinds of rubber materials will be implemented in strict accordance with the procurement standards, and all materials are produced by famous brand manufacturers. It is prohibited to use three no materials, especially small material additives, More importantly, we generally use some materials produced by PetroChina and Sinopec, with stable quality. Songjiang group does not mean to seek the most price, but more importantly, pursue the quality of products.
For example, we always use Yunxiang brand for natural rubber, PetroChina Kunlun brand for styrene butadiene rubber, PetroChina Kunlun brand n41e for nitrile rubber, Sinopec and kaolin for antioxidant, and ultra-fine calcined kaolin.
