• From Injection mold to plastic parts and components 

  • Our vision

    We use “Cooperation,Sharing and Win-Win" as our company management

    guideline .

    Founded in 2013, MLJ manufacturing a High-Tech engineering company,specializing in the designing and manufacturing of super high quality Plastic injection molds and jigs for Automotive industry, such as Interior system,Lighting system,Engine system,Air intake system,Sunroof system, Instrument panel,Climate,Centre consoles, Bumper,Grilles,Door, ABCD Pillars,Mirror etc.

    We served different industries with our precision tech and excellent service.

    We are very serious in choosing the raw material,from steel to hot runner and other components based on different project requirement. 

    We have close cooperation with the leading supplier of mold components and work with together to build high quality molds.

    Together with our suppliers, we produce good quality mold and fine products to our respected customers.


    Mold and products

    Mold making

    Injection and die casting mold making

    Mold design

    Independent mold design

    Parts production

    Plastic parts and die casting parts production

    Assembly service

    We can proceed the whole design production and assembly service.

  • Project management makes the project completed on time

    We always strive for the best.

    1.Project team-8 Professional Engineers
    We have our own professional project team consisting of 8 experienced engineers who are responsible for controlling progress and assisting solving technical problem for each project to meet the customer’s requirements completely.They will be in involved in every steps from project input technical review,mold design,fabrication, inspection,mold trial,modification and shipment review and progress control. They can even communicate technical things with customers in English directly.

    2.Project Management Mode-Time plan and Weekly progress report

    According to customer’s requirement, Cowwin will review & make a satisfactory Time Plan and Mold Progress Schedule report to customer weekly and manage inside effectively.

    3.Project management concept
    We believe that working closely with client and fully mastering of all project technical requirements combined with our uncompromising construction standards are key factors to a successful mold.

  • see our factory

    Over the 8 years, we’ve built an excellent reputation of supplying super high quality molds and jigs for customers from Europe, North America, Asia and Africa over 10 countries around the world.



  • MOLDS Knowlege

    Key points in mold choosing  1, Mold life requirement Mold life requirement is the most important matter to decide the mold material choosing. 2, Raw plastic material  Different raw plastic material has differnt material spec, which required different steel material.