... Better hiding power, dispersibility 4.SGS,CTI,FDA,ROHS Carbon black masterbatch for injection/blow film/sucktion General Injection ... method:Injection Moulding, othersContent of carbon black:18%Information for your reference:1)Content of carbon black of our black masterbatch can be ... 4)suggest application ratio:1%~3%, according to the require of products.5)Processing method: blow film, blow moulding, ...