3-by-6-meter Iron Maxer Chain Crane 3-by-6-meter Iron Max Chain Crane has components that have been refurbished through the Heat treatment process and glazed kiln paint has been used to extend the life of the body. The hook of this crane is cast by Drop forged method and the fire load chain is covered with the best alloy and its hand chain is covered with zinc. The length of these two chains is 6 meters and the ability to carry and move heavy loads up to 3 tons. They are made on the basis of Japanese technology and are used for industrial work in loading garages and repair shops.