1.manufacturer 2.made in china 3.ISO9001:2008 4.delivery time: ... grinding and polishing process,a lot of dust buildup in the dirt will jade ornaments,and these parts ... watches,precision instruments,eliminating one by one removable screws,gears,springs spring,bracelets and other trouble,just remove ... appliances,precision circuit boards,parts used. made in china small mirror ultrasonic cleaning machine