SEARCH Articles Figures Tables Extrusion and molding Extrusion molding For plastics Materials polyethylene Materials specifications Mold material Molds plastic Plastic materialities Plastic materialities 129 standardization Plastic materialities plastics Plastic materials Plastic molding Plasticating extrusion Plastics extrusion Polyethylene plastic Polyethylene plasticization Specific Plastics Standard Specification for Polyethylene Plastics Molding and Extrusion Materials from Recycled Postconsumer (HDPE) Sources Standards and Specifications Standards, specification