Model: gsl-z200 to gls-z760 Nominal torque: 31500-1600000n. M (31.5- 1600 kn. M) Bore length: 710-1920mm Outer dimeter: 200-760mm All of our couplings are wildly used in metallurgy industry, iron & steel industry, petroleum industry, chemical industry and paper making, such as metal machinery, rolling mills, mill machines, cranes, non ferrous metal, oil machinery, and plastic machines. If you have any requirement, please make a definite declaration. We will make a specific product solution designed for you based on the data and drawings you have provided or on the written agreement between us and relevant technical documents and data. For request