businessman inspects plastic pellets for industry. plastic raw materials in granules . polymer, plastic resin

and background businessman buy chemical chemistry color colorant coloring contact containers contract delivery dye dyed employee factory for granulate granules green hdpe industrial industry inspects lab ldpe materials orange packing pehd peld pellets pet pigment pink plastic polyethylene polymer polymeric polypropylene polystyrene production pvc raw resin sign supply terephthalate thermoplastic