... 2.Good quality,price&service 3.ISO,SGS,MSDS,COA 4.Black powder/granular 5.Be Used for ... common die and extrusion,single layeramp-proof system products-------------------------------------------------------------------------5.Packing: Packed in kraft paper 20kg//50kg/Ton ... as customer's requirement Excellent quanlity of carbon black n115,n121,n234,n326,n539,n762 with competitive price,black carbon