... caprolactam7. size: 1.5-4mm8. sulfur: 24%min Physical property white powder, easily soluble in water, aqueous solution appears ... ,pharmaceuticals,textiles,welding industry,Dyeing auxilizries of acid dyes,Deliming agent of leather,Beer making,Chemical agentStorage battery making ... Special inspection is provided according to the request of customers from certain countries.The professional logistician in ...