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.We are specialized in manufcacturing and exporting Lenses ,including Plano-Convex Lenses ,BiConvex Lenses ,mounted lenses,Plano-Concave Lenses,Bi-Concave Lenses,Convex-Concave Lenses,Achromatic Double Lenses,Cylindrical Lenses ,Rod Lenses ,mounted lenses,Aspheric Condenser Lenses etc,if you want to buy our hand dryers,please send e-mail to us!