Qingdao Railing-O Metal Product Co.,
| H (mm) | 20 / 25 / 30 / 40 / 50 / 60 / 80 / 100 (as per model) |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Application | Handrail Systems, Staircase Railings, Balustrades, Architectural Frameworks |
| Surface Finish | Satin / Mirror (optional) |
| Packaging | Plastic bag + carton + pallet (or as per request) |
| Certificate | CE, ISO9001 |
| Tube Compatibility | Square tube, t=2.0 mm |
| A×B (mm) | 20×20 / 25×25 / 30×30 / 40×40 / 50×50 / 60×60 / 80×80 / 100×100 (as per model) |
| Material | Stainless Steel AISI304 / 316 |
| Model Number | QLS017 |
| Certification | CE certifiate/ ISO9001 |
| Place of Origin | Qingdao, China |
| Brand Name | Railing-O |
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Product Specification
| H (mm) | 20 / 25 / 30 / 40 / 50 / 60 / 80 / 100 (as per model) | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Application | Handrail Systems, Staircase Railings, Balustrades, Architectural Frameworks | Surface Finish | Satin / Mirror (optional) |
| Packaging | Plastic bag + carton + pallet (or as per request) | Certificate | CE, ISO9001 |
| Tube Compatibility | Square tube, t=2.0 mm | A×B (mm) | 20×20 / 25×25 / 30×30 / 40×40 / 50×50 / 60×60 / 80×80 / 100×100 (as per model) |
| Material | Stainless Steel AISI304 / 316 | Model Number | QLS017 |
| Certification | CE certifiate/ ISO9001 | Place of Origin | Qingdao, China |
| Brand Name | Railing-O | ||
| High Light | ce stainless steel square duct ，stainless steel square duct satin ，mirror square ducting pipe | ||
The QLS017 series square 90° connector is a precision-engineered corner fitting designed to join two square handrail tubes at a precise right angle. Manufactured from premium stainless steel with AISI304 for interior applications and AISI316 for exterior installations, this connector provides a clean, weld-free solution for directional changes in handrail systems. The internal fit design ensures a flush, seamless finish that complements modern architectural styles. Available in satin or mirror finish, the QLS017 series covers a comprehensive range of square tube sizes from 20×20mm up to 100×100mm, making it a versatile choice for diverse railing projects.
Dual material options – AISI304 for interior applications, AISI316 for exterior and coastal environments.
Precision 90° angle – ensures seamless right-angle joints between square tubes.
Internal fit design – delivers a flush, weld-free professional appearance.
Comprehensive size range – covers 10 tube sizes from 20×20mm to 100×100mm.
Two finish options – satin (brushed) or mirror polished to match design preferences.
Glue-in installation – simple adhesive bonding; no welding or specialist skills required.
ISO9001 certified – quality assured with MTC documentation available.
Free sample available – MOQ from 100 pcs.
| Parameter | Value |
|---|---|
| Product Type | Square 90° Connector / Corner Joint |
| Series | QLS017 |
| Material | AISI304 (interior) / AISI316 (exterior) |
| Surface Finish | Satin or Mirror (optional) |
| Tube Compatibility | Square tube, thickness 2.0mm |
| Installation Method | Internal glue-in (structural adhesive required) |
| Installation Location | Indoor & Outdoor |
| Certification | MTC, ISO9001 |
| MOQ | 100 pcs; free sample available |
| Packaging | Plastic bag, carton & pallet (or as requested) |
| Code | AXB (mm) | H (mm) |
|---|---|---|
| QLS017.2020 | 20X20 | 20 |
| QLS017.2525 | 25X25 | 25 |
| QLS017.3030 | 30X30 | 30 |
| QLS017.4020 | 40X40 | 20 |
| QLS017.4040 | 40X40 | 40 |
| QLS017.5050 | 50X50 | 50 |
| QLS017.6060 | 60X60 | 60 |
| QLS017.8040 | 80X80 | 40 |
| QLS017.8080 | 80X80 | 80 |
| QLS017.100 | 100X100 | 100 |
Each connector is individually packed in a plastic bag to prevent scratching, then securely packed in cartons and loaded onto pallets. Custom packaging is available upon request. Delivery timelines are arranged according to order quantities and production schedules; we guarantee on-time shipment as committed. MTC and ISO9001 certification documents accompany every consignment.
Material flexibility – choose 304 for interior or 316 for exterior applications.
Complete size coverage – one series covers 10 popular square tube dimensions.
Weld-free installation – reduces on-site labour and ensures a clean finish.
Free sample – evaluate quality before committing to bulk orders.
Quality certified – ISO9001 and MTC documentation provided.
Factory-direct pricing – competitive rates with volume discounts.
Global experience – trusted by architects, contractors, and fabricators worldwide.
Company Details
Business Type:
Manufacturer
Year Established:
2016
Total Annual:
50000000-50000000
Employee Number:
200~200
Ecer Certification：
Verified Supplier
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