Can these hinges be installed on both left and right doors?

Yes, they are applicable for both left and right installations.

What finish options are available?

Options include satin nickel, satin chrome, copper, brass, and pearl chrome.

Is customization available for this product?

Yes, customization from samples, designs, and minor changes is available.

SUS 304 Stainless Steel Fireproof Invisible Hinge Stainless Steel Concealed Hinges

Name: SUS 304 Stainless Steel Fireproof Invisible Hinge Stainless Steel Concealed Hinges
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 840997245

Guangdong, ChinaDongguan Shengang Precision Metal & Electronic Co., Ltd.

US$1.00-50.00

500 Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Stainless Steel

Model NO.

SG-HC3D29111SS-100

Material

Stainless Steel

Name1

Stainless Steel Adjustable Heavy Duty Concealed Hi

Name2

Adjustable Hinges

Name3

Concealed Door Hinge

Size

111*29*34mm

Hinge Material

Stainless Steel

Door Weight

80-100kg

Door Thickness

30mm/40mm

Left and Right Applicable

Feature

Completely Hidden Hinge System

Transport Package

White Inner Boxes, Yellow-Brown Outer Cartons.

Specification

111*29*34mm

Origin

China

HS Code

8302100000

Production Capacity

100000PCS

Key features

Heavy Duty Load Capacity: Supports 80-100kg per pair for heavy-duty applications.

SUS 304 Stainless Steel: Made from high-quality SUS 304 stainless steel for durability.

180 Degree Opening Angle: Provides a wide 180-degree opening angle for easy access.

Completely Hidden Design: Fully concealed system for a clean and seamless look.

Versatile Door Compatibility: Suitable for wooden, folding, interior, and cupboard doors.

Left and Right Applicable: Can be installed on both left and right side doors.

Multiple Finish Options: Available in satin nickel, chrome, copper, brass, etc.

Customization Available: Supports customization from samples, designs, and minor changes.

Company profile

Dongguan Shengang Precision Metal & Electronic Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤6.13h

AI-Powered supplier vetting

SummaryDongguan Shengang Precision Metal & Electronic Co., Ltd. is a China-based limited trading/manufacturing company established in 2007, with a stated founding description also referring to February 2000. It operates from Dongguan, Guangdong, with 117 employees, a 5,550 m² manufacturing plant, six production lines, and 5 R&D engineers. Its product range centers on door and window hardware, including hinges, locks, handles, closers, stoppers, and sliding or folding-door fittings. The supplier reports ISO 9001:2015 certification, OEM/ODM cooperation, international export coverage, and sales in Europe, America, Southeast Asia, and the Middle East. Production-management and technical capabilities are supported by stated equipment, engineers, quality-control personnel, and testing activities. However, the provided information does not substantiate after-sales procedures, financial strength, specific customer cases, or measurable customization performance.

Supplier typeThe supplier is identified as a China-based limited company and trade company, while its descriptions also characterize it as an international manufacturer integrating R&D, production, and sales of door and window hardware. This indicates a combined trading and manufacturing profile rather than a purely trading entity.

CertificationsThe supplier explicitly reports holding an ISO 9001:2015 certificate for its management system. This is direct evidence of a recognized quality-management certification, although the scope and validity details are not provided.

R&D capabilityThe supplier reports advanced production equipment, leading production technologies, 5 R&D engineers, mold-making and product-testing activities, and multiple product types including adjustable concealed and casement hinges. These statements directly support active technical development and product innovation capability.

Production capacityThe supplier reports a 5,550 m² manufacturing plant, six production lines, advanced equipment, production technologies, dozens of production staff, quality-control personnel, and a production-management system. Its stated product scope and broad export markets further indicate established operating capacity.

Customization capabilityThe supplier states that its engineers conduct R&D, mold making, production and processing, and product testing, and that it cooperates with international brands through OEM and ODM. These activities explicitly support customization capability, although no customization examples, minimum quantities, or technical limits are specified.