بحث
Recently, the utility model patent declared by our company "a protective device for installing the anti-hanging membrane structure of sewage tank" was granted the patent right by the State Intellectual Property Office and obtained the "utility model Patent Certificate".
حقوق النشر © هيكل غشائي للملعب جميع الحقوق محفوظة.
خريطة الموقع | الدعم الفني 
