Quality Control - Zhejiang Laidi Technology

LEADING's Strict Quality Control System

LEADING focus on manufacturing interior door handle and cabinet handle for 27 years, has a complete independent research and development and production system.it has advanced equipment that is high automation ratio, stable product quality, reliable and low cost, date of delivery is guaranteed.

Material Selection &Supply Chain

Strictly selection of high quality and famous brand environmental protection zinc alloy, aluminum alloy and stainless steel material.

Zinc alloy material conforms to GB/T13818--2009 standard.

Aluminum alloy material conforms to GB/T1196-2008 standard.

Stainless steel conforms to GB/T1220 standard .

Customization &Design

LEADING has 3 research and development and design personnel for interior door handles, cabinet door handles and hardware accessories.

In order to, better meet the market demand and integrate with the world, they participate in various training and industry exchanges many times every year, to improve the competitiveness of our products.

LEADING has a number of precision mold research and development and manufacturing partners.

They are highly efficient, their products are reliable and stable, and they work well with our designers,so it could provide customers with various OEM&ODM services.

Precision Machining&Surface Processes

LEADING has die-casting, milling and cutting, drilling, polishing, assembly, quality inspection an，packaging and warehouse departments

Die casting

There are a total of 12 200-ton power die-casting machines, making the product denser and no sand inclusion on the surface.

Milling and cutting

There are a total of 10 large milling machines and 6 high-precision punches, ensuring minimal error.

Drilling

We have a total of 20 semi-automatic tapping machines, which can simultaneously tap multiple products, with low cost and high efficiency, shortening the delivery cycle.

Polishing

There are a total of 22 fast, slow and automatic polishing machines. The products are polished repeatedly manually to achieve a fine and smooth surface.

Electroplating and oxidation

Multiple thickened plating or oxidation layers, with uniform color, no gaps, and no black spots.

Assembly

There are 5 packaging lines in total, which are fast and low-cost.

Quality Inspection

The Quality Department has inspectors in die-casting, milling and cutting, drilling and polishing workshops to ensure that each product meets standards.

Testing And Laboratories

Strictly selection of high quality and famous brand environmental protection zinc alloy, aluminum alloy and stainless steel material.

Size

In the finishing process, the size of product is checked and adjusted to meet the unified standard, in order to offer the basis to finished product assembly, inspection and instruction of installation

Color

After electroplating is completed, it is necessary to compare with the original sample by color tester,to ensure that the color is within the tolerance range of color.

Electroplating

To test the resistance of the coating under acid and alkali condition,by 72 hours of neutral salt spray test.

Surface

Inspectors determine whether the product has sand inclusion, blistering and flaw to prevent defective products from flowing to the market.

Door handle rebound

whether the door handle can rebound by pressing down and releasing the handle.

Packaging &Transportation

LEADING has neutral packaging, project packaging and exquisite packaging, more, can also provide OEM&ODM services according to customer requirements.

In order to ensure that the product will not be squeezed during transportation, the product itself will be packaged in bags, placed in inner boxes, and finally packaged in a big carton that be made of double-sided texture material.

Offer multiple layers of protection for all products to prevent destroyed .

Quality Management System Certification ISO9001

Environmental management system certification ISO14001