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  • Worry-Free Service Support Throughout

    Demai not only provides high-quality transmission and steering components but is also committed to offering full-cycle service support, from pre-sales consultation and order processing to after-sales technical assistance. Adhering to our philosophy of “Credibility First, Efficiency First, Service First,” we ensure that every partner receives timely, professional, and responsible responses.

  • From the First Call, We Start Finding the Best Solution for Your Needs

    Whether you need product selection, technical parameter confirmation, or custom development, Demai’s sales engineering team will provide professional advice. We support fast matching based on OE numbers, vehicle models, drawings, or samples, and can provide preliminary quotations and technical proposals within 24 hours. During the pre-sales phase, we communicate thoroughly with you to ensure smooth and efficient subsequent cooperation.

Fast Confirmation, Transparent Tracking
From Inquiry to Shipment, Every Step Is Clear and Visible

  • Customer inquiry

    Quote and lead time reply within 24 hours.

  • Order confirmation

    Contract signing and production order release.

  • Production tracking

    Scheduled production with periodic progress updates.

  • Quality inspection

    100% final inspection; test reports available upon request.

  • Packaging & logistics

    Professional packaging and safe shipment.

  • Documentation delivery

    Timely provision of invoice, packing list, B/L, etc.
  • Zhejiang Demai Machinery Co., Ltd.
    Zhejiang Demai Machinery Co., Ltd.

    Engineering Team, Always on Standby

    Demai has a technical support team of experienced engineers who are familiar with the selection, installation key points, and common troubleshooting of drive shafts, steering shafts, universal joints, and other products. We can provide:
    ● Product installation guidance (videos, documents, or online meetings);
    ● Fault diagnosis and repair recommendations;
    ● OE number verification and interchangeability checking for replacement parts;
    ● Technical solution review for custom development.

    Even if you only need advice on technical issues, we are happy to provide professional opinions free of charge.
  • Zhejiang Demai Machinery Co., Ltd.
    Zhejiang Demai Machinery Co., Ltd.

    Whatever Problem You Encounter, We’ll Solve It at the First Moment

    Demai’s after-sales service is not just a promise but a complete execution system. We commit to:
    ● Quality complaints: Response within 24 hours, solution proposal within 72 hours.
    ● Technical support: Remote video guidance, illustrated instructions, or on-site engineer support when necessary.
    ● Replacement parts: For confirmed quality issues, free replacement or compensation arranged immediately.
    ● Customer follow-up: Regular satisfaction surveys and continuous service improvement.

    We value every customer’s feedback, because every improvement makes Demai better.
Customer Feedback & Suggestions
Demai always listens to customers with an open mind. Whether it’s product improvement suggestions, service evaluations, or new cooperation ideas, you can tell us through the website contact form, email, or phone. Every piece of feedback is recorded, reviewed, and incorporated into our improvement plan. We believe that excellent partnerships are built on open communication and continuous mutual trust.
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