Process:Rotational molding. Material: LLDPE Plastic Feature:Waterproof, Dustproof, Corrosion resistance, and Shocks absorption ... , extreme temperatures endurance, shocks absorption, all sealed waterproof, dustproof and corrosion resistance²Rotationally moulded, reinforced corner ... the technology is rotational molded, which makes the box waterproof, strong impact resistance . And in the field of ...