Auto parts on the use of plastic ball, due to security considerations, BB, Airsoft BBS) often require plastic ball has high strength, in addition to the selection of high hardness and high impact of materials outside, but also plastic ball to join bead and glass fiber materials, increase the impact resistance and strength. The benefits of adding glass bead production process is relatively simple, the nylon material can be directly added according to a certain proportion can, can meet the requirements of most parts of high strength plastic balls (BB, Airsoft, BBS) but there is a part of plastic ball to higher impact resistance, add a simple glass bead has not reached the standard, so you can add a glass fiber to meet the requirements of high impact plastic ball, but with glass fibre than Jiabozhu complex, to give PA plastic modification (BB, Airsoft BBS) with the PA materials and glass fiber granulator according to a certain proportion, mixing well, cut plastic raw material particle size, and injection molding, processing difficulty and because of the added plastic ball high hardness glass fiber (BB, Airsoft, BBS) the grinding efficiency is low, so the glass fiber plastic ball of high prices, the cost of production decision.