— Grand éclat —

New Product Development And Plastic Mold Manufacturer

With bases in Shenzhen China, Los Angeles USA and Singapore. ISO9001:2015 , ISO14001:2015, BSCI B factories audit certificated

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We have successfully produced more than 85,000 sets of plastic molds


We have worked with 1000 happy customers


Our products have been successfully exported to 78 countries


We have more than 100 product patents

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À propos de Grand éclat 

Shenzhen Grandshine Technology Co., Ltd is a leading professional in new product development and plastic mold manufacturer with over 20 years experience. With bases in Shenzhen China, Los Angeles USA as well as Singapore, Grandshine specializes in new product design, custom plastic injection mold, silicone mould, plastic parts, die casting, stamping mould, product assembly and large-scale production, offering comprehensive one-stop supply chain.

Over the years, our products range has encompassed phone accessories, tablet accessories, gaming accessories, industry equipment, pet products and various consumer electronic items.

We provide complete manufacturing solution, include products design, prototype, molding, mass production and final assembly to satisfy your supply chain requirements. With our new product development team, you can get service of industrial design, mechanical design, mold design, electronic design, FPC PCBA design etc.

— Strategies For Product Development —

As leading manufacturer, Grandshine has 20 years experience in manufacturing. Factory has passed ISO9001, ISO14001, BSCI B, SA8000 certification.Our customers include Walmart, Wiko, Mricosoft, Lenovo, Incipio, Case-mate etc .

Product Design

At Grandshine, we understand that many clients may not have professional product designers or lack the expertise in utilizing CAD or Pro E for 3D product design. We offer experienced engineers to create product designs and moulds aligned with manufacturing processes.


Before production, we conduct multiple rounds of rapid rendering and 3D printing prototypes services to ensure our designs meet the highest standards. This allows for cost-effective and small batch sample testing before full-scale production. 3-5 Delivery time.

Plastic Mold Manufacturing

we select the most suitable plastic molding techniques based on the product's structure and functionality. our offering include precision injection molding, Insert Mold, Co-mold, CNC machining, silicone rubber molding, various molding process

Logo Print

Many clients often facing high MOQ requirements or reluctance from factories to provide logo printing services. We are pleased to offer clients a solution with low MOQ logo printing services, including logo silk printing, logo laser engraving, logo badging, and more.

Mass Production

With production facilities and offices in Shenzhen, Singapore and United States, we provide 7-15 days fast batch production service with 1000 units low MOQ. Say goodbye to the high MOQ requirement of 5000 or 10000 units imposed by other factories for mass production.

Production Assembly

We have three standardized product assembly lines, ensuring high-quality assembly services for both plastic components and electronic PCBA products. Whether you require plastic or electronic assemblies, we adhere to ISO 9001 and ISO14001 standards to guarantee quality.

- Spectacles d'expérience des clients de Grandshine -

— What Our Customers Say —

Grand éclat
Company Grandshine was and is a big partner, who support best service and fast delivery with perfect quality. Our business is growing every day. ---Dirk Wennigsen from Germany
Grand éclat
I would like to comment how pleased i was with the consistently reliable products and exemplary level of customer service provided to out company by Kaiwin leung and his team at Grandshine technology Co.,Ltd ----Ken Wong from USA​
Grand éclat
We do not have any direct contact with PCBA suppliers in China, we trust Grandshine on the ipad cases because Grandshine has the most processes under one roof and great customer references. Then, Grandshine is very professional company, so we are asking for help on the connector module. ---Steve from USA​​
Grand éclat
Thank you for your resposiblity and reliablity. You always meet deadlines and can perform a variety of duties, handle many situation with ease. You are very cooperative, work in harmony and add to posistive enviroment. You welcome and develop new ideas. You show a desire to improve job skills. ----Anna from Russia​
Grand éclat
We are writing to recommend Grandshine Technology Co ltd, Grandshine has been a tremendous value to our business all on design, OEM?ODM and supply. They are the actual manufacturer or the products rather than being a middle-man company. They provide a fast, courteous and friendly service and we highly recommend tham for all your plastic parts needs. Thank youi Grandshine for a wonderful partnership .---Richard from USA
Grand éclat
As we are new in the watchband market, there are many challenge, Grandshine have been helping us out of it. you are really a good business parter, with warm heart, patient in explaining the products to us, and provide us with very details information, i believe your kindly heart will have reward in shortly future. It is said that god help those who help themseleves, Grandshine has done more than we expect to, i wish you a good fortune, and your hard working will bring you more business. Keep moving on, you are on the way to success. Thank you --- Paco from UK

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