1.manufacturer 2.made in china 3.ISO9001:2008 4.delivery time ... binocular,microscopes,cameras,video cameras and other parts of the parts of the lens by ultrasonic cleaning ,etc.all ... :the grinding and polishing process,a lot of dust buildup in the dirt will jade ornaments,and these ... appliances,precision circuit boards,parts used. high quality manufacturer of sliver products ultrasonic cleaning machine