We are XI'AN LIYE S & T CO., LTD in China, we can supply Electronic Digital Double Beam Height Gauge (Drive train, position precision. Whed micro-adjust, easy movement. Large screen, metric and inch systems transformation. Relatire and absolute measuring conversion, preset memoring fuctions, may be connected with computer and printer for data out. Plate chromium sprag paint and spray plastic for base) with good quality and low price.