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If you are looking for a reliable rapid prototyping and volume production manufacturer from China, we are here for you!
Our professional sales executives and project managers at Marigold work with a wide range of product developers, product designers and engineers from all over the world to help them make their designs to good-quality prototypes and products.

Have a look at some examples of projects we’ve worked on and see how they were made. Projects using a wide range of services including CNC machining, sheet metal fabrication, injection molding, compression molding, pressure die casting and various of post finishing techniques.

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Injection-Molded Painted Door Handle

Precision injection-molded from durable ABS/PA66, this painted door handle combines ergonomic design with impact resistance for residential, automotive, or commercial applications. Engineered with smooth contoured grips and precise mounting interfaces (±0.1mm tolerance), it ensures comfortable operation and secure installation. The multi-layered paint finish—available in matte/gloss textures and custom colors—offers superior scratch/UV resistance, tested to 500+ hours of salt-spray exposure. Optional anti-static or antimicrobial coatings enhance functionality for healthcare/industrial environments. Lightweight yet robust, its modular design supports quick assembly with standard door frames, while ISO-compliant tooling guarantees consistent quality from prototyping to mass production. Ideal for applications demanding aesthetic appeal and reliable performance.

Category：

Injection Molding

Process involved： Injection Molding
Material： Tool Steel, stainless Steel, Aluminum, Thermoplastic, Termosrt
Part Size： Customized
Surface Finish： Polishing, Sandblasting, Brushing, Painting, Electroplating, Screen Printing
Surface Color： Customized
Quantity： No MOQ
Lead Time： 2-7 Days for Sample, About 10-20 Days for Mass Order

Product Description

Basic Info

Model NO.	Injection Molding Part	Molding Method	Injection Molding
Qualiy Control	Professional QC Stuff, Spectrograph	Application Industry	Sensor, Automotive, Automation, Instrument
Surface Treatment	Polishing, Sandblasting, Brushing, Painting, Electroplating, Screen Printing, etc	Tolerance	≥0.01mm
QC System	100% Inspection Before Shipment	Lead Time	20-30 Days
Shipping	Express/Air/Sea	Business Type	Factory
OEM/ODM	Yes	Materials Available Machining	Tool: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738
Transport	DHL, or as Your Request		Stainless Steel: 420, NAK80,S136,316L, 316, 301,303, 304
Logo	Customized		Aluminum: AL6061, AL5052, AL7075
Transport Package	Paper, EPE Foam, PP Bag, Carton Box, Customized		Thermoplastic: ABS, HDPE, LDPE, PP, PPA, PS, POM, PC, PU, TEELON(PTFE), NYLON, PC, PMMA, PA, PEEK, PET
Specification	Customized		Thermoset: Liquid, Silicone, Rubber, Epoxy, Polyuethane, Phenolic
Origin	China	Surface Finish	SPI A1, SPI A2, SPI A3, B2, SPI B2, SPI B3, SPI C1, SPI C2, SPI C3, SPI D1, SPI D2, SPI D3
Production Capacity	3000000	Surface Finish

FAQ

1. Are you a manufacturer or trading company?
We are a one-stop custom mechanical parts manufacturing factory specializing in CNC machining, sheet metal fabrication, injection molding, and comprehensive post-processing services (e.g., surface treatment, assembly). Our facility is equipped with CNC milling/lathe machines, sheet metal presses, injection molding machines, an ERP system, and over 50 sets of advanced production equipment. For any project, we can provide material certification reports, sample QC reports (for CNC/metal/plastic parts), and other technical documentation as required.

2. How to get a quotation?
To request a quotation for custom mechanical components (CNC-machined, sheet metal, or injection-molded), please provide detailed specifications including:
Drawings (PDF/STEP/IGS/DWG, etc.) or 3D models
Process type (CNC machining, sheet metal fabrication, injection molding)
Material grade, surface treatment requirements, quantity, quality standards, and delivery timeline

3. Can I get a quote without drawings?
Can your team assist with design development for my concept (e.g., CNC parts, sheet metal components, plastic moldings)? Absolutely! For custom manufacturing projects, we accept samples, sketches, or detailed dimensional notes. Our engineers can provide process-specific design support (e.g., CNC machining feasibility analysis, sheet metal nesting, injection mold design) to convert your ideas into accurate quotes.

4. Can you provide samples before mass production?
Yes, we offer prototyping services for CNC-machined parts, sheet metal prototypes, and injection-molded samples (sample fee applicable). The prototype fee may be refunded upon confirmation of volume production orders (applicable to all processes).

5. When is the delivery date?
Typical lead times vary by process:
Prototypes: 2-7 days (CNC/sheet metal) | 5-10 days (injection molding)
Batch production: 10-30 days (CNC/sheet metal) | 20-40 days (injection molding)
(Exact timing depends on part complexity, process, material, and order quantity)

6. How do you control the quality?
Our multi-process quality control system covers all manufacturing services (CNC, sheet metal, injection molding):
(1) Material inspection – Verify raw material specifications (metal/plastic) and dimensions
(2) First article inspection (FAI) – Validate critical features before mass production for any process
(3) In-process QC checks – Regular sampling during machining/fabrication/molding
(4) Pre-shipment inspection – 100% final check for all components (regardless of process)

7. After-sales Service Team
If you encounter any issues with our custom mechanical parts (CNC, sheet metal, or plastic components) within one month of receipt, contact our after-sales team via phone, video call, or email. We guarantee a solution within 7 working days, supported by process-specific technical expertise.

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Precision Injection-Molded Plastic Enclosure for Biotech Lab Equipment - Sample Analysis Module (FDA-Compliant)

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Precision Injection-Molded Plastic Enclosure for Biotech Lab Equipment - Sample Analysis Module (FDA-Compliant)

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