Polyester Monofilament Yarn, Nylon Monofilament Yarn, Polypropylene Monofilament Yarn manufacturer / supplier in China, offering Ntec Professional Saw-Tooth Trimmer Line - Heavy Duty Nylon Weed Eater String, Industrial Strength Ntec Saw-Tooth Trimmer Line - Extra Tough Weed Whacker String, Ntec Saw-Tooth Nylon Trimmer Line – Superior Cutting Performance for Professional Landscaping and so on.