E3F-DS30C4 E3F3-D11 sensor, plays a great important role for machine, and it is very popular in the market. besides, it has high quality and long service life. Yangling mainly engaged in SMT equipment, SMT consumables, SMT spare parts, SMT lubricants and processing of SMT. Yangling also do selling and recycling of SMT machines. We offer SMT machine repair and maintenance services for board, servo, motor