About
Before 2007,TONGYI mainly focused on top quality special PA6, PA66 etc engineer plastic in China. Engineer plastic mainly for electric and electronics and mould field. Since 2007, TONGYI add to start to operate all kinds of archery arrow shaft accessories for shooting practice and hunting, such as field point, screw in arrow point, glue in arrow point, break off arrow point, broadhead, insert, bushing, pin, nock, etc