... Insoluble SulfurStandard: Q/IMFJ 001-1997Use:Sulfur vulcanizer improves high temperature safety in rubber masticating without frosting and burnt rubber and ... used in natural and synthetic rubber in manufacturing tire, rubber tube, rubber belt, rubber shoes, rubber roller, cabel, seal, ... person:june liuTel: 86-371-86158658Phone No: 86-15038300226 High Temperature Stable Insoluble Sulfur IS-HS Series