Weifang Jiahong Chemical Co., Ltd. was founded in 2008, it is specialized in the production of insoluble sulfur, rubber curing agent series. Our main products are heat stable IS-HS-series, oil-filled 200 mesh Insoluble Sulfur . We are a high and new-tech enterprise integrating R&D, production and sale. Insoluble sulfur is a new rubber vulcanizing agent. It forms IS-series oil - treated and non oil-treated products. It is used as the best vulcanizing agent for rubber. For it can overcome much ordinary sulfur's shortcomings, besides improve the quality of the rubber product. We are able to offer all types of superior insoluble sulfur, such as IS-HS8010, IS-HS7520, IS-HS7020, IS-HS6033; IS60, IS90 and so on.