95 mx is an alloy of the following composition chromium 30 percent boron 6 percent manganese 3 percent silicon 3 percent and iron balance the tafa 95 mx can be combined with a chrome steel another material which can be used for coating by spray welding is tafa bondarc wire 75b manufactured by tafa technologies inc tafa bondarc wire 75b is an alloy containing the following elements nickel 94 percent aluminum 4 6 percent titanium 0 6 percent iron 0 4 percent manganese 0 3 percent cobalt 0 2 percent molybdenum 0 1 percent copper 0 1 percent and chromium 0 1 percent another material which can be used for coating by spray welding is the nickel chrome alloy tafaloy nickel chrome moly wire 71t manufactured by tafa technologies inc tafaloy nickel chrome moly wire 71t is an alloy containing the following elements nickel 61 2 percent chromium 22 percent iron 3 percent molybdenum 9 percent tantalum 3 percent and cobalt 1 percent various combinations of the above alloys can also be used for the coating spray welding packing support areas 131 132 can also be coated by a plating method such as electroplating the surface of support areas 131 132 can be ground polished finished to a desired finish to reduce friction and wear between support.