... plastic road barrier product LDPE,HDPE,LMDPE,LLDPE,PE,UV.8. resistant or food grade material for product. OEM manufacturer , ... mould ---aluminium casting mould by rotomouding , 10 CNC machine and big mould workshop 2.new design ----professional engineer and help you ... simple sketch .3.plastic product ---- PE,LDPE,HDPE,LMDPE, UV.8-20 resistant ,food grade material for plastic product .rotational moulded ...