Ningbo San'an Electronic Technology Co., Ltd. is engaged in process development, technical research, test development, professional design, development, manufacture and sales of various types of PLC control housings, Terminal Block, IO module housings, industrial relay housings and other connector housings. Our products are widely applied in electronic industry. With rich experience and professional techniques, we provide products with excellent design and manufacture for customers. Our products have industry-leading quality and sell well in China and all over the world.