METHODS OF PACKING It should be applied around the loads at the highest possible tension to take advantage of the strap strength. A good joint is essential to hold the strap ends together. Strap ends can be sealed using either Friction Welding by use of Battery Operated or Pneumatically Operated Strapping Tools . Strap Ends can also be sealed using metal seals by use of Manual Pet Strapping Tools. We also arrange supply of necessary Manual, Battery Operated and Pneumatically Operated Tools.