Custom Sheet Metal Fabrication & Hardware Manufacturer
From custom-engineered sheet metal parts and brackets to complete architectural and structural hardware lines—we deliver precision laser cutting, stamping, bending, welding, and coordinated surface finishing directly from our factory in Hangzhou, China.
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OEM & Custom Drawing Production — Built strictly to your CAD drawings, tolerances, and batch specs
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In-House Fabrication & Finishing — Laser cutting, bending, stamping, welding & custom surface treatments
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Ready-to-Order Hardware Ranges — Fence & gate, barn door, garage door, pergola & furniture hardware
Design & Prototyping
Manufacturing & Assembly
Product Delivery
Virtual Factory Tour
See why we are trusted around the world
How We Support Our Customers
Start with a drawing when the part is defined by your project. Start with a product category when you are purchasing from an established JIANSEN hardware range.
Custom Sheet Metal Fabrication
For sheet metal parts defined by your drawing and application. Include the material, dimensions and quantity to discuss the fabrication requirements.
Standard Hardware Products
For purchasing from six regularly supplied hardware ranges. Identify the product category, model and required quantity to start a product quotation.
Finishing & Assembly Coordination
From laser cutting, bending, stamping, and welding to surface finishing and packaging, we synchronize every process with your timeline.
Who We Do It ForSupporting Businesses from Prototyping to Mass Production
Startups & Innovators
Accelerate product development with rapid prototyping, DFM (Design for Manufacturability) support, and small-batch production—ideal for validating new concepts and preparing for launch.
Growing Businesses & SMEs
Scale up confidently with flexible MOQs, cost-effective manufacturing, and robust quality assurance as your business expands and enters new markets.
Enterprises & OEMs
Rely on JIANSEN for large-scale production, turnkey assembly, integrated supply chain solutions, and global logistics to meet demanding timelines and volume requirements.
Startups
Rapid prototyping and DFM support to accelerate your product launch.
SMEs
Flexible MOQs and cost-effective manufacturing.
Enterprises
Large-scale production and turnkey assembly.
Hardware Ranges for Your Product Line or Project
JIANSEN supplies hardware for doors, gates, furniture, shelving, and pergola connections. Select the relevant range, then identify the dimensions and installation details required for your order.
Fence and Gate Hardware
Adjustable Gate Hinges
Gate hinges with threaded adjustment and mounting plates for hanging gates on posts.
Gate Latches
Latches for holding gates closed, with configurations selected around the gate frame and opening direction.
Gate Drop Rods
Vertical rods and mounting brackets for holding a gate leaf in position.
Barn Door Hardware
Barn Door Track Systems
Track hardware for sliding barn doors, with roller and mounting arrangements matched to the door opening.
Rollers & Hangers
Rollers and hangers that connect the door panel to its track, with different fixing arrangements.
Bypass Door Hardware
Hardware configurations for overlapping sliding doors, allowing multiple panels to move across the same opening.
Metal Furniture Legs
Z-Shaped Table Legs
Metal table legs with an angled Z-shaped profile and top mounting plates.
X-Shaped Table Legs
Crossed metal legs that create an X-shaped base beneath the tabletop.
Geometric Frame Table Legs
Metal leg frames with geometric center profiles and connecting crossbars for different furniture designs.
Pergola Brackets
Three-Way Corner Brackets
Connectors with openings for a pergola post and two beams at a corner junction.
Four-Way Pergola Connectors
Connectors arranged for a post and three adjoining beams within the pergola frame.
Five-Way Pergola Connectors
Multi-direction connectors with openings for a post and four horizontal beams.
PRODUCT & PROJECT SUPPORT
- Standard Hardware Ranges
- Drawing-Based Custom Parts
- Finishing Coordination
About JIANSEN
Metal Hardware Manufacturing in Hangzhou, China
Established in 2004, JIANSEN is a metal hardware manufacturer based in Hangzhou, China. We supply hardware for doors, gates, furniture, and structural connections, supporting wholesale purchasing and project requirements.
Buyers can start with an existing product from our four core ranges or bring drawings and specifications for a custom hardware discussion. Product references, dimensions, and intended use help define the requirements for each inquiry.
Questions Before You Start
Should I start with a standard product or a custom inquiry?
What should I send for a custom sheet metal inquiry?
What information is useful for a standard hardware quotation?
Send Your Drawing or Product Requirements
Contact JIANSEN about custom sheet metal fabrication or standard hardware supply. Include the part or product, quantity and application to start a quotation discussion.
Useful Details to Include
For custom parts, add a drawing and highlight the critical dimensions. For standard hardware, identify the product category and model or provide a reference image.
