Machines, namely, aerators, casting machines, machine tools for crushing rock and compacting powder materials and industrial robots for crushing rock and compacting powder materials; machine parts, namely, mold for use in the plastering and metal cutting; injection molding machines; connecting rods for machines, motors and engines other than for land vehicles; machine couplings other than for land vehicles; electric welding machines, electric welding apparatus, namely, welding torches, gas-op...