Product specification approval
      Preparing product specifications and confirmed by customer.

  Confirmation of design principle
      Preparing R&D plan for the product, and performing feasibility test, approved by the customer finally

    Engineering design
     Performing engineering tests and design review, adopting progressive proposal.

    Designing confirmation
      Performing functional test for further progress.

    Pilot run / trail production
     As per engineering sample approved, perform small quantity production run.

    Customer test
      Deliver samples to customer for retest, modify until satisfying customer.