Frequently Asked Questions

Answers About Custom Plastic Manufacturing

Find answers about Hengmei's injection molding capabilities, mold development, OEM and ODM services, samples, production schedules, surface finishing, international delivery and after-sales support.

01

What products does Hengmei manufacture?

Hengmei specializes in custom injection-molded plastic components, including product housings, internal structural parts, transparent parts, electroplated decorative parts, automotive interior components, medical equipment accessories and household appliance parts.

02

What industries do you serve?

Our products are used in automotive interiors, medical equipment, household appliances, consumer electronics, audio equipment, office equipment and other industrial applications.

03

Do you provide OEM and ODM services?

Yes. We provide integrated OEM and ODM manufacturing support based on product concepts, 2D drawings, 3D files or physical samples, covering DFM review, mold development, molding, finishing and assembly.

04

Can you develop and manufacture molds?

Yes. Our services include mold design, precision machining, fitting, trial molding, mold correction and maintenance. Mold structure is evaluated according to product design and expected production volume.

05

What information is required for a quotation?

Please provide product drawings or samples, material requirements, surface finish, tolerance, estimated order quantity, packaging standards and target delivery schedule.

06

What injection molding capacity do you have?

Hengmei operates 29 injection molding machines from 60 to 450 tons, supporting sample trials, flexible batch production and stable mass manufacturing for products of different sizes and structures.

07

Can you provide samples before mass production?

Yes. Initial samples are produced after mold trials and checked for dimensions, appearance, assembly fit and functionality. Sample preparation usually takes approximately 3–7 working days after the mold is ready.

08

What is the lead time for bulk production?

Bulk production generally takes around 15–30 days after sample approval. The exact schedule depends on order quantity, material availability, finishing processes and current production capacity.

09

What secondary processing services are available?

We can support CNC machining, drilling, trimming, ultrasonic welding, hot melting, electroplating, painting, printing, assembly, labeling and export packaging.

10

How do you control product quality?

Quality control covers incoming materials, in-process inspection and final inspection. Dimensions, appearance, assembly fit and functional performance are checked according to confirmed project requirements.

11

What shipping methods and trade terms do you support?

Products can be shipped by express, air or sea. Common terms such as EXW, FOB, CIF and DDP can be discussed according to the order and destination.

12

Can you sign a Non-Disclosure Agreement?

Yes. We respect customer intellectual property and confidential project information. An NDA can be reviewed and signed before drawings, samples or development documents are shared.

13

Can customers visit your factory?

Yes. Factory visits are welcome by appointment. Hengmei is located at No. 7, Dali Industrial Road, Dali, Qingxi Town, Dongguan, Guangdong, China.

14

Do you provide after-sales support?

Yes. We provide project follow-up, quality issue analysis, process correction, replacement support and other agreed solutions for confirmed manufacturing problems.