Guide shaft support, firm ring, linear bearing, ball guide shaft, oil-free bushing, single-axis robot driver, linear guide rail, linear slide rail cable protection chain, ball screw support assembly, trapezoidal screw sliding screw, rotating shaft, bearing housing bearing, cantilever pin and button pin support point step screw, coupling motor, synchronous pulley idler, synchronous toothed belt, keyless bushing, flat belt Round belts, pulleys, idlers, roller transmission parts, gears, sprockets and chains, conveyors, bushings for locating pins and fixtures, positioning parts, slides, lens LED lighting fixtures, reading stands, sensors and switches, probes