گواهی ثبت اختراع طراحی شیر آب ذوزنقه ای-2009

On May 19th , 2010, VIGA Trapezoid basin mixer which designed by designer Peter Kuang, has got the Design Patent Certificate by State Intellectual Property Office of the P.R.C. The certificate No. رفر.:1220930 which with the valid till May 18th 2020.