... production line has made the improvement in the original Japanese photoresistance processing technology and equipment foundation, at present production equipment excellent, ... 4mm, 5mm, 6.5mm, 7mm, 11mm, 12mm, 20mm, 25mm,and so on .13 kind of specification more than 100 model ... product advanced level, widely applied in the light survey and the light automatic control domain.The product has proliferated ...