... Meter,Projector Meter, Microscope, Gear-test Meter, Surface measuring Meter and so on;7):Products range: standard component or non-standard ... have 12 subsidiaries in china, dealing in chains, gears, sprockets, worm wheels since 1993;2. Delivery guaranteed: our production area of 35000 ... : We specialized in producing all kinds of standard and non-standard worm wheel, so you can buy all the products you ...