businessman in the office signs a contract for the supply of plastic granules for industry. plastic raw material in granules

background businessman chemical chemistry color colorant coloring containers contract density dye dyed employee factory granulate granules green hdpe high industrial industry lab ldpe material orange packing pehd peld pellets pet pigment pink plastic polyethylene polymer polymeric polypropylene polystyrene production ps pvc raw re resin sign terephthalate thermoplastic