
Shu Guang Machinery Factory, located in Xiaoshan District, Hangzhou, China. Shu Guang Machinery is a long-established company specializing in industrial gearboxes, focusing on the R&D and production of high-performance plastic extruder gearboxes and key components of industrial transmission boxes. Our main products include: (1)SG, ZLYJ, ZSYJ series hardened single-screw gearboxes. (2)SZ, SZL series conical twin-screw gearboxes. (3)Various industrial gearboxes and high-precision gear products. ...