Shanghai Songjiang shock absorber Group Co., Ltd. official website introduce to you: Adhere to control the Rubber Expansion Joint raw material quality, as Songjiang Group pursuit of high-quality products to serve customers, high-quality products must be inseparable from high-quality raw materials, so our factory always has high requirements for raw materials procurement.
High quality products must relay on the high quality raw materials, the high quality rubber joint must have high quality raw materials, In order to produce high standard rubber expansion joint and rubber vibration isolation / rubber damper, Songjiang group made our own procurement standards. All kinds of rubber materials will be in strict accordance with the procurement standards, All materials are purchased from famous brand manufacturers, even for small material additives. Generally, we use some materials produced by China Petroleum and China Petrochemical, Those companies with good reputations as well as with stable quality. It does not mean that, Songjiang Group only give highest price in raw material procurement, but more importantly, the pursuit of product quality.
For example: natural rubber we have been using yunxiang brand, styrene butadiene rubber is used by China National Petroleum Kunlun brand, nitrile rubber is used by China National Petroleum Kunlun N41E, antiaging agent is used by Sinopec, kaolin we use is ultrafine calcined kaolin.
Link to this article: https://www.songjiangflex.com/raw-material-quality-control/
