... steel seal used for packing contact. Packing Button,PET strapping seals,PET seals,strapping seals1) Size: 13,16,19mm2) Material: galvanized steel3) Usage ... ,PET seals,strapping seals1) Metal Seals Size : 13mm,16mm,19mm2) Material: galvanized steel3) Usage: PET band strap4) Style: half open5) Metal ...