Aerial view of the AOHUALUN plant in Rui'an: production buildings, loading yard and main gate

AOHUALUN · WENZHOU OUZHILUN CONSTRUCTION HARDWARE CO.,LTD.

Hardware sets that fit your window profiles.

AOHUALUN makes the complete hardware set for aluminium, thermal-break, alu-plastic-aluminium and PVC windows: turn-and-tilt, inward and outward casement, sliding, hinged doors and curtain wall top-hung vents. Designed, tooled and assembled in our own plant in Rui'an, China.

Explore products

10,800 m²Plant area

6 window systemsComplete hardware sets

8 categoriesComponents for distributors

OEM & toolingMoulds and finishes to order

Design to assembly

Tooling, stamping, die casting, injection moulding, surface finishing and assembly in one plant.

10,800 m²

Plant area in Rui'an, Zhejiang, with space for mould making and finished-goods storage.

80 kg / 180 kg

Rated load of the window hinges and door hinges in the range, as published in the catalogue.

Aluminium & PVC

Locking sets, transmission rods, handles, hinges, cylinders, crescent locks, rollers and stays.

What we make

One supplier for the hardware inside the window

Every window type needs a different combination of locking points, rods, hinges and stays. We build these as matched sets, so a window maker can order one set instead of assembling it part by part.

Window sets — turn-and-tilt, inward and outward casement, sliding, hinged doors and curtain wall top-hung vents.
Components — handles, pivot hinges, transmission rods, lock bodies, cylinders, crescent locks, rollers and friction stays.
Materials — Stainless steel 201 / 304, Zinc alloy, PA66, Aluminium, finished to match the profile colour.
Tooling — in-house mould development for profile-specific parts and OEM requirements.

Second production hall with benches, stacked component crates and staff at work — Production workshop — Catalogue, company strength pages (PDF p. 5–6)

Path A · for window and door manufacturers

Browse by window system

Start from the window you build: each page gives the fitted window type, profile groove conditions, the hardware set with catalogue codes, key dimensions, rated load and the cutting or installation information.

Assembly drawing of a fitted turn-and-tilt window with the NPD600 hardware set laid out around the sash

NPD600 seriesTurn-and-tiltTurn-and-tilt (inward-opening, flat lower suspension) window with a Euro T-slotup to 90 kg

Assembly drawing of a fitted inward-opening casement window with the NP300 hardware set laid out around the sash

NP300 seriesInward-opening casementInward-opening side-hung casement (open-in), single moving sashwindow hinges up to 80 kg (catalogue p. 01)

Assembly drawing of a fitted outward-opening casement window with the WK200 hardware set laid out around the sash

WK100 and WK200 seriesOutward-opening casementOutward-opening side-hung casement (open-out), single sashset by the friction stay selected

Assembly drawing of a fitted two-sash sliding window with the TL200 rollers and crescent lock laid out

TL200 seriesSliding windowsTwo-sash sliding window (double sash)two rollers carry 45 kg (max.)

Assembly drawing of a fitted single-leaf aluminium door with the PM100 lock, cylinder and hinges laid out

PM100 and PM200 seriesHinged doorsSingle-leaf swing door (PM100)door hinges up to 180 kg (catalogue p. 01)

Assembly drawing of a fitted curtain wall top-hung vent with the MQ200 pegstays and friction stays laid out

MQ200 seriesCurtain wall top-hungCurtain wall top-hung vent (awning window) framed into the curtain wallset by the friction stay selected

See both product paths on one page

Path B · for distributors and wholesalers

Browse by hardware category

Eight component families with stable catalogue codes, so a stocked line can be reordered by code. Each category page lists representative models and where to ask for the full model list.

OHL.DB · OHL.LD · OHL.MSHandlesLever and crank handles for casement, turn-and-tilt and door sets, in white, gold, silver and black finishes.OHL.HHinges and pivotsPivot hinges for open-in and turn-and-tilt windows and for swing doors, handed and rated per sash weight.OHL.LJ · OHL.LG · OHL.20 · OHL.CDrive rods and transmissionsMain and side transmission rods, anti-error rods and corner devices that link the handle to the locking points.OHL.ST · OHL.SKMulti-point lock bodiesMortise lock bodies for door and window sets with matching locking plates, face plates and keepers.OHL.SXA · OHL.SXBLock cylindersCylinders with keys for swing doors and lockable window sets, supplied in several lengths.OHLYCrescent locksCrescent locks and catches for sliding windows, sliding doors and PVC sections.OHL.HLRollersAdjustable rollers for sliding sashes, with load ratings per pair and sizes matched to the sash.OHL.HC · OHL.SC · OHL.XWQ · OHL.PHCFriction stays and pegstaysFriction stays and pegstays that carry and hold open casement, top-hung and curtain wall vents, in stainless steel.

In-house manufacturing

From mould to packed set

Design and mould development, stamping, die casting, injection moulding, surface finishing and assembly all take place in our own plant. That is what lets us match a set to a specific profile groove instead of selling a generic kit.

Design and mould development
Stamping
Die casting
Injection moulding
Surface finishing
Assembly

PVC window hardware

Production workshop with rows of assembly benches, component crates and staff fitting parts — Assembly workshop

Finished-goods warehouse with packed cartons on shelving — Finished-goods warehouse

Tell us the window you are building

Send the profile drawing, the window type and the quantities you need. We will reply with the matching hardware set, catalogue codes and the details we need to quote. For PVC windows, say which profile system you use. Phone 0577-66001137 or email ouzhilun@163.com.