SR Packaging China has manufactured injection, extrusion, and blow molded plastic components since 1989. Its products include bottles and jars made of PET, PETG, polyethylene, polypropylene, polystyrene, PC, SAN, ABS, PMMA, glass, aluminum, and tin. It also manufactures polyethylene tubes with assorted closures types. SR Packaging maintains five ISO-certified factories in China, which all together house 180 injection-molding machines, 80 blow-molding machines, and 25 extrusion-molding lines. The firm manufactures more than 30 million bottles and tubes each month.