... 1,the polyolefin pipes, 2,Granule 3,plastic injection 4,plastic blowing Masterbatch RB-150ZS-2A for PP ... injection Scope of application:This plastic additive is mainly ... used in polyolefin pipes, flakes, plastic injection, plastic blowing, extrusion and ABS or other engineering plastic ... place. Masterbatch RB-150ZS-2A for PP injection