40+ processes.
One engineering team.
In-house manufacturing in Shanghai and Ningbo, extended by an audited partner network for casting, forging, extrusion, surface finishing and PCBA—all managed end-to-end by CSMFG engineers under one ISO 9001 system.
Engineering resources: tolerance tables · machining cost calculator · material specifications · drawing guide · buyer FAQ · IP protection
CNC Machining
The right machine for the right job: we route each part to the most economical process that holds your tolerance.
- 3- and 5-axis milling, CNC turning, turn-mill centers
- Swiss-type and multi-spindle machining for high volume
- Gantry machining for large workpieces
- EDM, grinding, honing, thread rolling
- Robotic machine tending and automatic bar feeding for competitive high-volume pricing
Casting + Machining
Casting blanks finished to print under one roof removes the classic two-supplier quality dispute.
- Die casting (aluminum, zinc) with in-house precision machining
- Investment casting in stainless and carbon steels
- Sand, gravity and iron casting for larger sections
- Metal injection molding (MIM) and powder metallurgy
- X-ray, pressure and hardness verification available
Forging + Machining
Forged strength with machined precision—drive shafts, fittings, wear parts and safety-critical components.
- Hot forging up to heavy sections; cold forging for net-shape economy
- Heat treatment with certified hardness results
- Complete machining and surface finishing of forged blanks
- EN 10204 3.1 material certificates standard
Fabrication & Welding
Sheet, plate and tube converted into frames, enclosures and weldments—by robots where it pays, by certified welders where it matters.
- Laser cutting, CNC punching, press braking, rolling
- Stamping and deep drawing with in-house tooling
- CNC tube bending and end forming
- Robotic MAG/MIG welding cells; manual TIG for stainless and aluminum
- Weld testing: ultrasound, macro sections, salt spray on coatings
Injection Molding
From precision engineering plastics to extra-large moldings—with tooling built, owned and maintained transparently.
- Engineering resins: PA, POM, PC, ABS, PP, chemical-resistant grades
- Extra-large moldings (e.g. wastewater treatment enclosures)
- Insert molding and overmolding
- Tooling DFM, mold-flow analysis, texture and finish management
Surface Treatment
In-house powder coating plus long-term audited partners for plating and anodizing—managed under our quality plan, verified by our QC.
- Hard and clear anodizing
- Powder coating (in-house), wet paint, e-coating
- Zinc, nickel and chrome plating, galvanizing, passivation
- Heat treatment and hardening
- Coating thickness and salt-spray testing on every lot plan
