Specifications: 1, 1680x1, 1680x1x2 dipping type-product characteristics: mainly used in CR rubber and NR rubber and EPDM rubber of some customers. The formulation of the yarn dipping solution can be adjusted according to the customer's rubber type and application to match the adhesive properties of different rubbers with the customer. 2. 1680x1 Inverted tube type (Pagoda type, Straight tube type)-Product characteristics: According to customer demand, the fineness can be increased and the initial and double twisting processing can be combined