Shanghai Liangheng wood working Co.,Ltd. is a professional shutter manufacture with"Anyhoo"Brand. (a)American production line: processing more precision. (b)One of the few Chinese manufactures who use the tenon and mortise joint between rails and stiles. (c)PU paint-Valspar brand, require much higher painting technology, better anti-UV, anti-corruption and delicate. (d) We put all parts together to make final check of each set before package. The size, color, hardware are double checked.