Ningbo (P&M) Plastic Hardware Products Co. has 15 years of mold making technology for Custom Injection molded parts. We have ISO 9001 certificates. We provide professional Molded plastic container supplier and we are professional Custom Molded plastic container We have sufficient experience in product raw material selection and mold material selection. We are well aware of the properties of various materials and the advantages and disadvantages of mold design. We will recommend suitable materials and professional design advice for our clients.
We are a specialized manufacturer serving as your single-source partner for both custom molded plastic containers and engineered plastic housings. We design, engineer, and produce functional storage solutions and protective enclosures, providing a seamless bridge from concept to assembled component. As your dedicated manufacturing partner, we offer integrated expertise—from material science and industrial design to precision molding, finishing, and assembly—delivering ready-to-use solutions that simplify your supply chain.



Our Dual-Service Focus: From Storage to Structure
We provide two core, complementary manufacturing services under one roof:
As a Molded Plastic Container Supplier: We produce durable, custom containers, bins, cases, and vessels for storage, transport, and organization. Our focus is on functionality: secure sealing, stackability, chemical resistance, and durability.
As a Custom Plastic Housing Manufacturer: We engineer and produce protective enclosures, covers, and cases that house and safeguard electronics, mechanisms, and sensitive components. Our focus is on structural integrity, user interface, environmental protection, and aesthetics.
For both, we extend beyond basic molding to offer kitting and assembly services, such as installing hinges, latches, gaskets, or internal components, delivering a finished product to your line.
Custom Design for Function: Containers vs. Housings
Our design philosophy tailors the part's architecture to its primary mission.
For Plastic Containers:
Walls & Ribbing: Designed for vertical load-bearing (stacking strength) and side-impact resistance.
Sealing Surfaces & Lid Interlock: Precision-engineered lip, groove, and gasket channel designs to ensure consistent, reliable seals for liquid-tight or dust-proof requirements.
Ergonomic Handling Features: Integrated handles, grip textures, and balanced weight distribution for safe and easy handling.
Modular & Stacking Geometry: Designed for stable, interlocking stacking when full and nested space-saving when empty.
For Plastic Housings:
Structural Shell & Internal Mounting: Ribs, bosses, and chassis features are designed to securely fasten and protect internal components from shock and vibration.
Assembly Joining Systems: Robust snap-fits, screw boss columns, and living hinges designed for secure, repeatable assembly of housing halves.
User Interface Integration: Precise apertures for buttons, connectors, displays, and ventilation, often with designed-in strain relief and aesthetic detailing.
Environmental Sealing: Integration of gasket grooves, sealed seams, and managed parting lines to achieve target IP (Ingress Protection) ratings.
Material Selection Driven by Application
We select polymers based on the end-use environment and performance needs of the part.
For Containers: Priority on Content Compatibility & Durability.
Polypropylene (PP) & Polyethylene (PE): The workhorses. Excellent chemical resistance, good impact strength at low cost. Ideal for chemical storage, food-grade containers, and industrial totes.
PET (Polyethylene Terephthalate): For crystal clarity, stiffness, and gas barrier properties. Used for transparent display containers and packaging.
ABS & SAN: For superior clarity and rigidity compared to PP, used for cosmetic cases, instrument covers, and parts requiring a premium look.
For Housings: Priority on Strength, Appearance, and Stability.
ABS & PC/ABS Blends: The standard for consumer electronics, power tools, and appliance housings. Great balance of strength, finish, and cost.
Polycarbonate (PC): For high-impact, transparent, or high-heat applications like medical devices, ruggedized equipment, and lens covers.
ASA & UV-Stabilized Polymers: For outdoor equipment and automotive housings requiring resistance to weathering and sunlight.
Precision Molding Processes & Assembly Integration
We employ the right process for the part geometry and volume, supported by vertical integration.
Molding Processes We Master:
Injection Molding: Our primary process for high-precision, complex geometries for both containers and housings. Enables excellent detail, tight tolerances, and integrated features.
Blow Molding & Rotational Molding: For large, hollow, seamless containers (e.g., large tanks, drums, ducting) where injection molding is not feasible.
Our Integrated Manufacturing Advantage:
Design for Assembly (DFA): We design components for efficient, error-proof assembly in our facility, reducing your labor and complexity.
In-House Secondary Operations: Full capabilities including ultrasonic welding, heat staking, insert press-fitting, gasket installation, and decorative finishing (painting, printing, laser etching).
Quality & Consistency: As the single entity controlling mold design, material flow, production, and assembly, we ensure perfect fit, function, and consistent quality across all components.
Why Partner with Us?
We provide single-source responsibility for your plastic containment and protection needs. Our dual expertise allows for shared best practices in material science and tooling innovation across both domains. We function as a true extension of your operations, offering critical Design for Manufacturability (DFM) and Design for Assembly (DFA) analysis from the outset. We manage the entire process from raw material to packed sub-assembly, providing transparency, reducing your administrative burden, and accelerating your time to market.
Choose us when you need a manufacturing partner that understands both the science of holding contents and the art of protecting valuable technology. We deliver integrated plastic solutions built for performance.

We are plastic mold maker and can provide custom mold service, we can make injection molds, blow molds, rotational molds and die-casting molds.
For custom injection molds, we can provide professional custom injection molding services. Usually Plastic injection mold manufacturing Molding are manufactured using injection molding technology. The mold materials for injection molds can be chosen from P20, 718, S136, H13 and so on. The mold material reflects the mold life and product material requirements.
For parts that require blow molding production, we can also provide professional custom blow molding services.
|
Product Name |
Molded plastic container supplier
|
|
Pls provide |
2D, 3D, samples, or the size of the multi-angle pictures |
|
Mould Time |
20-35 Days |
|
Product time |
7-15 Days |
|
Mould precision |
+/-0.01mm |
|
Mould life |
50-100 million shots |
|
Producing Process |
Audit drawings - mold flow analysis - design validation - Custom Materials - mold processing - core processing - electrode machining - Runner system processing - parts processing and procurement - machining acceptance - cavity surface treatment process - complex mode Die - The entire mold surface coating - Mounting plate - mold sample - sample test - sending samples |
|
Mould cavity |
One cavity, multi-cavity or same different products be made together |
|
Mould material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
|
Runner system |
Hot runner and cold runner |
|
Base material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
|
Finish |
Pitting the word, mirror finish, matte surface, striae |
|
Standard |
HASCO, DME or dependent upon |
|
Main technology |
Milling, grinding, CNC, EDM, wire cutting, carving, EDM, lathes, surface Finish, etc. |
|
Software |
CAD,PRO-E,UG Design Time: 1-3 days (normal circumstances) |
|
Product material |
ABS,PP,PC,PA6,PA66,TPU,POM,PBT,PVC,HIPS,PMMA,TPE,PC/ABS,TPV,TPO,TPR,EVA,HDPE,LDPE,CPVC,PVDF,PPSU.PPS. |
|
Quality system |
ISO9001:2008 |
|
Establish time |
20days |
|
Equipment |
CNC,EDM,Cutting off Machine,plastic machinery,etc plastic suitcase mould zhe jiang |
Plastic injection mold manufacturing Injection Mould making
1.We communicate product design according to samples/drawings and your requirements.
2.After the product design is confirmed, we carry out the mold design, we provide all kinds of injection molds, blow molds, silicone molds, die-casting molds services.
3.Material procurement, steel cutting and mold basic tools.
4.Mold assembly
5.Mold inspection, tracking and controlling mold processing.
6. We will inform you the date of mold trial and send you the sample inspection report and injection parameters together with the sample.
7.Your instruction and confirmation of shipment.
8.Prepare the mold before packing.

Plastic injection mold manufacturing molding Specification
1. Professional manufacturer, design, production injection mould and stamping mould quality control
2. rich export experience plastic injection mould and stamping mould
3. Reasonable price of design mould
4. Cavities: single or as per your requirements cavity
5. Treatment: S45C Pretreat>25Hrc,And Nitriding
6. Mould Steel: Cavity ,Core and slide: P20 ,2738,2136 available Moldbase :LKM available
7. Standard:DEM ,HUSKY,available
8. Hot runner: according to your demand
9. Life time: >300 Thousand Times
10. Package: Plywood case, anti-rust paint
Mold design:
Information you need to provide us
1. If you have drawings, 2D drawings, 3D drawings (preferably in STEP format).
2. If there are no drawings, you need to provide specific length, width, height and weight information. (It’s best to send us samples)
3. Should the mold be sent to your country, or leave the mold in our factory and we will help you produce the product.
4. Mold material requirements, cavity number requirements (you can tell us about the size of your injection molding machine)
5. Product material requirements and product quantity. (You can tell us about the use of the product and we can give you suggestions)

Mold testing:
Once the mold is complete, I do a mold test. It usually takes about 3-5 days to complete. We need to assemble the mold, adjust the pressure data of the machine, and try production. We need to check whether there are problems during the normal production of the mold and make modifications.

Packaging according to your needs
1.By air ,it takes 3-7 days for delivery .The goods can be shipped by DHL ,Fedex ,UPS .
2.By sea ,the delivery time is based on your port .
To South East Asian Countries takes about 5-12 days
To Middle east countries takes about 18-25 days
To European countries takes about 20-28 days
To American countries takes about 28-35 days
To Australia takes about 10-15 days
To African countries takes about 30-35 days.

Video-1: (Factory Video)
Video-2: (Injection Molding)
Video-3: (Blow molding)
Video-4: (Blow molding)
Video-5: (Roll molding)







Customer satisfaction is our most important goal. We focus on communication and cooperation with our customers, always pay attention to their needs and provide quick response and quality customer service. Our injection production mold factory is committed to establishing long-term relationships and ensuring that our customers receive the best after-sales service during the purchase and use of our products, and we will definitely do our best to solve any problems for our customers.
1. Who are we?
We are based in Zhejiang, China, start from 2014,sell to North America(30.00%),Southern Europe(10.00%),Northern.
Europe(10.00%),Central America(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment.
3. What can you buy from us?
Mould,Plastic Product, Metal Product,Dental Product,CNC machining.
4. Why should you buy from us not from other suppliers?
Ningbo P&M Plastic Metal Product Co., Ltd. We main do all kinds of 3d design, 3d printing and plastic metal molds tooling and products. We have our own engineer and factory. One-stop supply:3d design - 3d printing - mold making - plastic injection.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;
Accepted Payment Currency:USD,EUR;
Accepted Payment Type: T/T,L/C,PayPal,Western Union,Escrow;
Language Spoken:English,Chinese,Spanish,French,Russian.
6. What are the characteristics of your service?
1. Your inquiry related to our products or prices will be replied within 24hours.
2. Welltrained and experienced staffs to answer all your enquiries in fluent English.
3. Offering the support to solve the problem in the application or selling period.
4. Competitive prices based on same quality.
5. Guarantee samples quality same as mass production quality.