Shanghai NSJ Hardware Ltd is a manufacture who engaged in the R&D, production, sales, and after-sales services. We specialize in producing medium / high-grade filling manchine, caulking guns, dual cartridges, static mixers, blowing pump and plastic sleeve and so on. While our products are being continuously up-graded in accordance with the demands from the market, we always insist on offering our customers the most-favorable prices, high-quality products, and best service. Carton packing.