Import Bi-Folding Door Lock — Buy in wholesale FOB from Supplier in China

This bi-folding door lock from Queenta Co. Ltd. is engineered for aluminium and UPVC swing doors installed in pairs, combining an aluminium alloy body with zinc alloy components to withstand repeated mechanical stress. The handle measures 27.5 mm in bottom width and 205 mm in bottom length, with an axis length of 34 mm plus the width of the aluminium profile, allowing adaptation to common European and Asian frame extrusions. Lock body options cover 20 mm, 25 mm, 30 mm, and 35 mm backsets, while cylinder lengths spans 60 mm, 70 mm, and 80 mm with single or double-sided keying as required.

The integrated handle lock mates with a separate lock body and cylinder to create either single-point or multi-point locking, a configuration widely adopted in residential terraces, commercial storefronts, and conservatory installations across temperate climates. Surface finishes include powder coating, wet painting, and anodizing, with standard RAL references such as 9016, 9010, 9005, 8019, 8014, and 1015 available or custom-matched to project palettes. The manufacturer states a durability benchmark of 30,000 opening and closing cycles and an approximate service life of 20 years under normal operating conditions, though independent third-party test reports should be requested for warranty validation.

Buyers typically include aluminium door fabricators, UPVC window-door system houses, and renovation contractors serving the European and Middle Eastern markets. OEM customisation is offered for bulk orders, with packing at 15 pairs per carton unless otherwise specified. Importing parties should confirm the precise lock body and cylinder combination required for their profile series, verify whether the axis length formula suits their stile depth, and request samples for torque and salt-spray testing before committing to volume.

Queenta Co. Ltd. is headquartered at Changcheng Building in Gaobian Village, Shishan Town, Nanhai District, Foshan City, Guangdong Province, placing it within the well-known Foshan hardware manufacturing cluster that serves both domestic fit-out and export markets. The company holds a harbor trust tier on the platform and currently shows a response rate of 0.00 percent with an average response time of zero hours, which indicates that direct enquiry may be necessary to assess current operational responsiveness.

The listing positions Queenta as an OEM-capable manufacturer of architectural door hardware rather than a pure trader, emphasising custom colour and dimension programmes alongside standard RAL finishes. No information is provided about factory size, annual output, ISO certifications, or specific export markets served, so buyers should request audited factory profiles and quality-management certificates during due diligence. The address and product focus suggest experience with aluminium window-door systems common in Southeast Asian and Middle Eastern construction, but this should be confirmed through reference checks and sample orders.