closeup of red plastic polypropylene granules, masterbatch polymer grain with shallow dof. hdpe or pvc resin pellets. 3d

polymer masterbatch plastic red closeup raw resin pellets chemistry pile dof dye granules extrusion polyethylene grain compound plant petrochemicals industry material thermoplastic factory technology polypropylene polystyrene background science petrochemical injection recycling pattern hdpe pigment pvc coloring granulate production color industrial chemical grained element pet laboratory research molding blur