... multi-plies nn nylon canvas rubber conveyor belt NN conveyor belt (Nylon conveyor belt) is characterized by thin belt carcass,high strength,shock resistance, ... all test pieces =20N/MMMade up of three parts, the top, the core and the bottomCore is made of several plies ... canvas sticking togetherTop and bottom are made of rubber. Standards: GB/T 7984-2001, DIN22102, BS490, AS1332, RMA, ...