Product Development & Manufacturing Services
Product Design & Engineering
Turn ideas into manufacturable designs through product structure development, 3D modeling, PCBA design, and design for manufacturing review.
Mold Development
Move from approved part designs to mold design, tooling, and mold trials, with sample review before production.
Surface Finishing
Plan product color, graphics, and decorative finishes with spray painting, printing, and other suitable processes.
Product Assembly
Bring components together into complete products with assembly, agreed inspection checks, and packaging support.
From Product Idea to Finished Product
Our integrated process connects engineering, tooling, manufacturing, and delivery. A complete product project typically takes around 10–17 weeks, depending on complexity, components, sample approvals, tooling changes, and shipping arrangements. We confirm the schedule after reviewing your requirements.
Phase 1: R&D & Prototyping
Turning your raw concept into a viable engineering model.
Phase 2: Tooling Preparation
Develop tooling and review trial samples before production.
Phase 3: Mass Manufacturing
Produce and assemble parts against the approved requirements.
Phase 4: QA & Delivery
Rigorous final quality inspection and global logistics.
Have a Product Idea? We Can Help You Build It.
We provide custom plastic product development, mold making, and injection molding solutions tailored to your project.. Share your concept, target functions, and production requirements so we can review feasibility and the right development path.
Consumer Electronics
We manufacture custom plastic housings and components for consumer electronics, including personal care devices, electric toothbrushes, and humidifiers, with solutions tailored to your product design and functional requirements.
Security Electronics
We produce custom plastic enclosures and precision-molded components for smoke detectors, security cameras, sensors, and alarm systems, designed to meet specific structural and assembly requirements.
Electrical Products
We provide custom injection-molded plastic parts for electrical products, including socket housings, insulating components, and protective enclosures, manufactured to project-specific design and dimensional requirements.
Pet Products
We develop and manufacture custom plastic components for pet products, including automatic feeders, feeding accessories, and pet care devices, supporting tailored designs from mold development to injection molding.
One Partner. The Complete Product Journey.
Coordinate product engineering and manufacturing with one development partner. We connect design decisions with prototyping, tooling, assembly, and production requirements so you can plan the full project.
Your Product Development Partner from Concept to Production
Huizhou SIRUIHAN International Technology Co., Ltd. provides end-to-end product development services for global B2B brands. From product design and precision plastic mold making to injection molding, surface finishing, and final assembly, we turn your ideas into market-ready products through a seamless, one-stop manufacturing solution. As your trusted product development partner, we help simplify the development process and bring your product concepts to life.
A Product Development Partner for Your Next Project
Whether you are developing a new concept or preparing an existing design for manufacturing, we can review the support your project needs.
Startups & Product Creators
Develop an idea into a defined product concept, prototype, and manufacturing plan.
Consumer Brands
Explore customized product design, appearance, functions, and packaging for your brand.
Teams Preparing for Production
Review drawings, components, tooling, assembly, and quantity requirements before manufacturing.
How We Work
Start with your idea, drawing, sample, or specification. We review the scope, agree on development milestones, and work through sample approval before production.
Share Your Project
Send us your drawings, CAD files, samples, specifications, or simply tell us about your product idea.
Review & Quote
Our team reviews your requirements, evaluates the development and manufacturing process, and provides a detailed quotation.
Design & Engineering
We refine the product design, optimize the structure, and prepare the product for prototyping and manufacturing.
Prototype & Validation
Build prototypes, test key functions, and make adjustments before moving into mass production.
Tooling & Production
Develop the tooling, coordinate components and finishing, and move the product into controlled mass production.
Assembly & Delivery
Complete product assembly, quality inspection, packaging, and prepare finished products for the agreed shipping arrangements.
Have a Product You Want to Build?
Send your idea, drawings, target functions, estimated quantity, and desired timeline. We will review your requirements and recommend the next step in product development and manufacturing.