Our test blocks are widely used in many industry areas, such as aviation, spaceflight, enginery, shipping, nuclear power, petroleum, natural gas, chemical industry, automobile, architecture, and pressure vessel.

With our advanced equipments such as high-accuracy optical jig borer, numerically-controlled electric spark, cutting line, digital lathe and miller, high-accuracy horizontal grinding machine, exterior and interior round grinding machines and etc. and our high capacity of new product development, we have manufactured many blocks with excellent quality, some of them were exported to United States, Japan, Korea, North Korea, Singapore and Taiwan area, and we are supplier of SGS for the ultrasonic testing calibration blocks