@ Model No. M8021, M8010 @ Made in Taiwan #Key Features 1. Zinc plated frame & bolts even better rust-proof. 2. Heat treatment with bolt front end, tight fasten with channel steel for an anti-shake, loosing prevent factor. 3. Fastening torque for general steel: 75 kgs/cã?¡ be aware keeping from over fastened. #Main Export Market AFRICA ,ASIA ,AUSTRALASIA ,C-AMERICA ,EUROPE ,MID-EAST ,N-AMERICA ,OTHER ,S-AMERICA