... shell. Keyless, single use bolt locks provide a high level of security and tamper-evidence. Steel, heavy-duty, high-security bolt ... Tankers, Wagons, Doors, Hatches, and all kinds of ISO container, etc. Type XHM-006 electric plastic seals(twist meter seal) Material Size1.Main ... to 230°F5.Metallic spiral wire:stainless steel wire coated plastic, iron wire, copper wire Color Packing Standard: 100pcs/bag ...