What is the average lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Is there a quality inspection process?

Yes, we perform 100% inspection including visual and functional checks for all finished products.

180 Degree Hinges Concealed for Interior Doors

Name: 180 Degree Hinges Concealed for Interior Doors
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 842740585

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

US$1.00-20.00

200 Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Baking in Silver

Model NO.

SG-HC4080

Material

Zinc Alloy

Name

180 Degree Concealed Hinges

Main Material

Zinc Alloy, Aluminum Alloy

Size

160*28*32mm

Angle

180 Degree

Door Thickness

36mm

Door Weight

80kg/2PCS

Transport Package

White Inner Boxes, Yellow-Brown Outer Cartons.

Specification

160*28*32mm

Origin

China

HS Code

8302100000

Production Capacity

100000PCS

Key features

180 Degree Opening Angle: Provides full 180-degree opening capability for interior doors.

Heavy Duty Load Capacity: Supports up to 80kg per 2 pieces for durable performance.

Premium Material Construction: Made of zinc alloy, stainless steel #304, and aluminum alloy.

Customizable Surface Finish: Available in satin nickel, chrome, gold, bronze, or custom colors.

Flexible Customization Options: Supports full customization, minor adjustments, and sample-based design.

OEM and ODM Services: Professional OEM and ODM services available for brand partners.

100% Quality Inspection: Every product undergoes visual and functional inspection before shipment.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season.

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: ≤5.91h

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.