Process:Rotational molding. Material: LLDPE Plastic Feature:Waterproof, Dustproof, Corrosion resistance, and Shocks ... -aging design, better durability, less cost²Suitable for air-dropping, maritime transport, shipment under extreme weather conditionsADVANTAGES1. Interior buffer ... tasteless, the technology is rotational molded, which makes the box waterproof, strong impact resistance . And in the field ...