Who We Are
More than 18 Years manufacturing experience for plastic injection mold, die casting, machining, surface finish and assembly
Dongguan Sincere Tech Co., Ltd. and Dongguan Shi Olayer Electric Appliance Co., Ltd. — an all-in-one partner for product design, mold manufacturing, molding, PCB soldering, assembly and delivery.
All-In-One Services
A contract mold company in China.
Welcome to Dongguan Sincere Tech Co., Ltd and Dongguan Shi Olayer Electric Appliance Co., Ltd, one of the top 10 plastic injection mold and molding companies located in Qiaotou Town, Dongguan City, China. We specialize in creating high-quality plastic molds, part desgin, prototype, PCB design, assembly, all in one services for a wide range of industries, including automotive, electronics, industrial products, toys, eelctric appliactions, house hold products, medical devices, and shipping products to America, Europe, and the world.
단기간에 수백 개의 부품이 필요한 프로젝트이든 장기간에 걸쳐 수백만 개의 부품이 필요한 프로젝트이든 상관없이 비용을 절감할 수 있는 올바른 맞춤형 사출 금형 및 성형 솔루션을 제공합니다.
To work with our plastic mold company, we do not just stop at taking your order and offering you molds and molding parts; we work together at every step along the way, from the design, prototype, PCB soldering, and function testing until the end of the project. We will review all of the possible potential issues and bring all of the suggestions to you.
첫 번째 샘플 부품이 나오면 전문가 팀이 샘플을 보내 부품을 검토하고 표면, 기능, 조립 등에서 완벽한 제품을 얻을 때까지 수시로 샘플을 다시 보내드립니다. 목표를 완전히 달성 할 때까지 우리는 귀하의 비즈니스를 지원하는 최고의 플라스틱 금형 회사라는 것을 알게 될 것입니다.
당사의 숙련된 디자이너와 엔지니어 팀은 18년 이상 플라스틱 금형 업계에서 일하며 전 세계 고객에게 혁신적인 솔루션을 제공하고 있습니다. 당사의 첨단 기술과 최첨단 장비를 통해 정밀하고 내구성이 뛰어나며 비용 효율적인 금형을 생산할 수 있습니다.
저희 플라스틱 금형 회사는 처음부터 끝까지 고객에게 탁월한 서비스를 제공하기 위해 최선을 다하고 있습니다. 모든 프로젝트가 고유하다는 것을 잘 알고 있기 때문에 고객의 요구에 귀 기울이고 디자인 및 생산 프로세스 전반에 걸쳐 고객과 긴밀히 협력합니다.



On-Demand All-In-One Services
From product design to packing and delivery.
We are not only a plastic mold company but also offer a complete range of services, from product design and prototype to custom plastic mold manufacturing, massive production, PCB soldering, certificate, assembly, packing, and delivery, all in one convenient location.
01
Send Sketch, Physical samples or rough design
Professional product design services to help you create your own unique product. Our experienced team of designers and engineers work closely with you to ensure your design is functional and meets your specific requirements.
02
Prototype
High-quality prototype services to test and validate your design. If we have any issues, we improve the design and re-prototype until everything is perfect, so you can visualize and test before mass production.
03
Mold Manufacturing
Precision mold manufacturing using injection machines from 60 to 2000 tons, and die casting machines from 120 to 1600Tons, for export or non-export molds — built to HASCO, DEM, MISUMI and other standards, or per your requirement.
04
Massive Production and surface finish
Our massive production services ensure your product is produced with the highest level of precision and quality, using the latest technology and equipment for efficient, consistent manufacturing. Verious surface finish avilable: painting, slk-screen, laser engraving, powder coating, anodizing, etc.
05
PCB Soldering
A complete solution for your electronic product needs. Our team of skilled technicians can assemble and solder your PCB boards with the highest level of precision and quality.
06
Certificate
If we do a complete product for you, your product needs a certificate — the only way to make sure it's safe and long-lasting. We provide comprehensive certification to meet all necessary safety and quality standards.
07
Product Assembly and Inspection
A complete solution for your product needs. Our team of skilled technicians can assemble your products with the highest level of precision and quality through a 100% inspection before delivery.
08
Packing & Delivery
We ensure that your products are shipped safely and on time, using only the finest materials to ensure your products arrive in perfect condition. We can handle the shipment for you as well.
Mold manufacturing guide information
수출용 플라스틱 몰드용:
수출용 금형 제조 경험이 풍부하여 미국과 유럽 전역으로 금형을 배송하고 있습니다.
당사가 사용하는 금형 표준은 HASCO, DEM, MISUMI, MEUSBURGE, PROGRESSIVE 등 또는 고객 요구사항에 따라 다릅니다.
The hot runner systems for the injection molds we use YUDO, INCOE, SYNVENTIVE, HASCO, MOLD MASTER, HUSKY, etc., or we use hot runner based on the customer’s special requirements.
For the mold cavity steel, we always use high-quality steel. For the export mold steel, we use 1.2738H, 1.2738HH, 1.2344, 1.2343, S136, NAK 80 for injection molds and 8407, 8418, 1.2344 ESR for die casting molds, or any steel according to the customer’s needs.
For non-export molds:
If we produce plastic molding and die casting parts for you, or need assembly and other services for you, we have the modern, efficient plastic injection machines and die casting machines to mold your parts efficiently and inexpensively, injectino mold cost as low as $500 and die casting mold as low as $1000, of course this is depending on the part size and geomitry designs. Send us your project we will check the price for your in 24 hours.
We do not only offer plastic mold and molding manufacturing services but also silk screen, pad printing, and painting. Quality and service are hallmarks of our operation, with a with a special tight lead time of 15 days, which is offered for some special cases, and an ISO-9001:2008 quality system in place to control the quality of the product.
Our plastic molding company has injection molding machines ranging from 60 tons to 2000 tons to suit your different requirements. Three sets of machines are 2K injection molding machines, which are for two-color molding parts service. We produce two- or single-color mold, multiple cavity mold, over-molding, 2-shot injection molding, insert molding, gas-assisted mold, transparent plastic injection molding, etc.

포장 및 배송:
당사의 포장 및 배송 서비스는 제품이 제시간에 안전하게 배송되도록 보장합니다. 제품이 완벽한 상태로 도착할 수 있도록 최고급 재료만을 사용합니다.
At Sincere Tech Mold Company, we are committed to providing exceptional service that goes above and beyond your expectations. Our plastic mold company has served clients in various industries, from small startups to multinational corporations. We have a proven track record of delivering high-quality products and services that meet our clients’ needs on time and within budget.
숙련된 디자이너, 엔지니어, 기술자 팀이 고객과 긴밀히 협력하여 프로젝트가 성공할 수 있도록 지원합니다. 최고급 재료와 최신 기술만을 사용하여 고객의 요구 사항을 충족하는 빠르고 정확한 금형 제작 및 조립 서비스를 제공합니다.
서비스 외에도 탁월한 고객 서비스도 제공합니다. 저희 팀은 언제나 여러분의 질문에 답하고 우려 사항을 해결해 드립니다. 성공적인 프로젝트의 핵심은 소통이라고 믿으며, 모든 단계에서 고객에게 최신 정보를 제공하기 위해 노력합니다.
제품 설계, 프로토타입, 맞춤형 플라스틱 금형 제조, 대량 생산, PCB 납땜, 인증서, 조립, 포장 및 배송 요구 사항에 대해 Sincere Tech를 고려해 주셔서 감사합니다. 당사는 고객의 성공을 돕기 위해 최상의 서비스와 솔루션을 제공하기 위해 최선을 다하고 있습니다. 궁금한 점이 있거나 서비스에 대해 자세히 알아보려면 info@plasticmold.net 으로 문의하시기 바랍니다.
As you can see from our website that we are a professional all in one company, our goal is to help your business succeed with our best solutions on your project so that you can make the most advisable decisions about which supplier is the best partner for your business.
아래에는 제작 및 품질 요구사항에 따라 결정을 내릴 수 있는 유용한 제안이 나와 있습니다. 많이 알수록 더 나은 선택을 할 수 있습니다. 더 많은 제안을 듣고 싶으시면 기술팀에 문의해 주세요. 프로젝트 비용을 절감하고 빠르고 원활하며 성공적으로 진행할 수 있는 최상의 솔루션을 제공해 드리겠습니다.
We are proud of our reputation gained over the past two decades of supplying high-quality plastic molds, die casting and some other electric products to customers in Germany, America, Spain, Lithuania, Canada, Italy, Dubai, China, Thailand, Mexico, and other major industrial nations. So far, our reputation as an on-time, reliable, quality, and cost-effective supplier has been growing.
지금 새 프로젝트를 시작할 준비가 되셨나요? 우리 팀에 연락하여 함께 파트너가 되십시오. 우리의 성실한 기술 플라스틱 금형 회사와 함께 100% 행복 할 것입니다.

Corporate Culture
As an ISO 9001: 2015-certified manufacturing partner, Sincere Tech brings together experienced mold designers, tooling engineers and project managers under one roof. We combine rich tooling experience with tight quality control to deliver stable production and excellent surface quality on every project.
Our Vision
Our Mission
Our Values

Have a part to manufacture? Let's make it production-ready.
Send your drawings, 3D files or project requirements and our team can review the next step.