AOHUALUN · Ruian, Zhejiang, China
WENZHOU OUZHILUN CONSTRUCTION HARDWARE CO.,LTD. makes window and door hardware for aluminium, thermal-break, PVC and curtain wall profiles — designed, cast, finished and assembled at one plant in Ruian, Zhejiang.
Our work is the hardware that lets a window open, lock and stay where it is set: handles, hinges and pivot hinges, transmission rods, lock bodies, cylinders, crescent locks, rollers, friction stays and wind bracing. They are made for the profiles that window fabricators already run, and supplied either as the set for a window system or as individual parts with catalogue numbers.
The plant covers 10,800 m² and takes a part from drawing and mould through stamping, die casting, injection moulding and surface finishing to the assembled set. The company was first certified to ISO 9001 in 2010, holds utility model patents and was recognised as a high-tech enterprise (certificate issued 2018).
Hardware from the plant is exported to Europe, the Middle East and South-East Asia, as stated in our catalogue, and supplied to window projects in China. The brand is registered as a trademark: AOHUALUN.
See the process chain and the load figures
Three things a buyer can hold us to, in the catalogue and on this site.
A handle, a transmission rod and a locking point only work when they are sized for the same sash. We quote the set for your window system rather than a bag of parts, and the parts list keeps the catalogue numbers so a repeat order is the same hardware.
Catalogue part numbers are used unchanged — OHL.DB, OHL.LJ, OHL.ST, OHL.HL, OHL.Y, NPD600, NP300, WK100, TL100 and the rest. A distributor can reorder from the same number, and a fabricator can check a number against the drawing before ordering.
Design, moulds, stamping, die casting, injection moulding, surface finishing and assembly happen at our own plant in Ruian, which is what allows a fixing pattern or a finish to be changed for an order.
Window fabricators usually start from the window system they build: the sash types, the profile groove, the parts list and the drawing. Distributors usually start from the parts they stock, which is why every component family has its own page with catalogue numbers.
Send the window you build and the profile you run. You get a parts list with catalogue numbers, the load figures for your sash and a drawing marked for your profile.
