High quality metal hinge, seamless connection, let your doors and Windows open and close freely!

YanTai ChaoQian Machinery Co.,ltd it is a private innovation company specializing in the R & D,production and sales of mid-to -high-end hardware products . in 2014,we independently developed various types of door locks,handles,hinges,engineering machinery precision castings, steel  precision cast pipe fittings,precision cast valves,special-shaped seals etc. China YanTai ChaoQian Machinery Co.,Ltd   add: #503, ,changjiang road ,fushan area, yantai city , shandong china.   tel: 86 535 6110388          fax: 86 535 6110399 email: wzy@ Tiktok:wangzhiyu77 wechat: 86 178 6281 6975 facebook: @ Linkedin : @ Twiter: @wzhiyu577