Since establishment, H.R.T has provided precision steel balls to rolling industries domestically and on abroad. The products are widely used in bearings, batteries, micro motors, disks, auto parts, precision instruments, medical instruments and cosmetics. Main products are： Chrome Steel Ball Stainless Steel Ball Brass Ball Ceramic Ball Glass Ball Plastic Ball H.R.T is ISO 9001, ISO 14001 and ISO/TS 16949 certified.