chemicals, plastics and synthetic materials. selkar offers many oil & petroleum products. bitumen is a common binder used in road construction. it is obtained as a residual product in petroleum refineries & is in black or dark brown non-crystalline soil or viscous material having adhesive properties derived...
chemicals, plastics and synthetic materials. selkar offers many oil & petroleum products. bitumen is a common binder used in road construction. it is obtained as a residual product in petroleum refineries & is in black or dark brown non-crystalline soil or viscous material having adhesive properties derived...