- CLUTCH & BRAKE PLATE - PRESSURE PLATE - CONVERTER PLATE - TRANSMISSION PLATE JINMYUNG FRICTECH produce high-quality products, we conduct various types of inspections-materials, hardness, flatness, parallelism, shape precision, roughness and operating efficiency. JINMYUNG FRICTECH'S steel plates are manufactured through the shaping processes such as stamping, laser machine cutting and broaching; various heat-treatments; straightening; barrel grinding and other post-treatment processes. These processes are composed in forms of consecutive works in order to manufacture our products satisfying customer's demand with uniform quality.