Ningbo Yinzhou Sonly Hardware Factory, established in 1988, is one of the leading manufacturers and exporters of hardware for doors and windows. With independent development and production capabilities, we provide various products such as locks, hinges, handles and section steel items. We have zinc and aluminum die casting, stamping, linear cutting, CNC, and bending machines, with solid ability to stamp, bend, mold, and manufacture all spare parts by ourselves. Relying on eight years of experience in exporting and OEM manufacturing, we develop (OEM) more than 140 new items for our partners....