Servo Polytech Coimbatore [P] Ltd. Manufactures Jockey Pulley Box Made of Polymer. Servo Polytech Coimbatore [P] Ltd. Is an ISO 9001:2000 registered company. Servo Polytech Coimbatore [P] Ltd. Supplies precision plastic components for the textile industry. Jockey Pulley Box Made of Polymer is available with double jockey pulley capable to handle reverse twist. Jockey Pulley Box Made of Polymer is designed to withstand vibration and tape slippage. This textile machinery spare can be used for original equipment manufacturers.