Established in 1998, wellCom Soft has been developing high quality
  simulation software to be used in the technical education field. Beginning with
  NC machine simulator; the CNC Lab, wellCom Soft has developed
  pneumatics/hydraulics simulator; the PH Lab, and the latest product;
  the PLC Lab has been completed in October 2001.

All products feature comprehensive digital textbook with the ability to call
  up the simulator directly (Patent No.0300135). wellCom Soft continues upgrading
  the existing products and producing new products to help teachers and students
  in the technical education field. For any comment or question, please contact
  below.