Roll Is An Important Part Of A Rolling Mill On A Steel Mill.Rolls Used In Common Cold Rolls Include 9Cr, 9Cr2,9Crv, 8CrMoV And So On. The Cold Rolls Require Surface Quenching And The Hardness Is HS45~…
Enhanced Version Of High Output High-power Electric Bicycle 80V20AH Battery Multifunctional Charger,Electric Bicycle High-power Charger url:http://www.dscharger.com
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea