The products are divided into many types, including polyamide fiber composite filaments (lines); polyester, polypropylene filaments (lines); and polypropylene ropes, polyethylene ropes and anti-static ropes made of special materials. These products are available with 4 mm to 55 mm in diameter, have wide applications, and feature high strength, low elongation, corrosion resistance, smoothness and softness, flexibility, durability and easy operation. They are mainly used in the fishing, water vessels, port operations, military research, oil exploration, and sports goods fields.