it is mainly suitable for railway container and truck 1. Material: A3 steel (I.e:Q235)2. ... , customs, ports, postal andlogistics industry Mines, roads, financial, chemical, petroleum, container, pharmaceutical and other industries. And applies to the gas meter ... , meter, meter box.5. How to use:Sealing easy. Put lock lever into the keyhole to seal the container. . Steel wire lock for container