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[ Manufacturer Trader ]Main business are Optical instrument
[ Manufacturer ]Main business are Optical product.
[ Manufacturer ]Main business are Bearing
[ Manufacturer ]Main business are Stainless steel products
[ Manufacturer ]Main business are Plastic mould, Wide field eyepiece.
[ Manufacturer ]Main business are Astronomical telescope
[ Manufacturer ]Main business are Mould
[ Manufacturer Trader ]Main business are Teaching equipment
[ Manufacturer ]Main business are Teaching instrument