How to thread the EPS (color steel) sandwich panel?
It depends on understanding! It is always more difficult than the way!
Of course, PVC flame retardant tubes, ha ha, I suggest that our company is to do foam sandwich board, the general customers are doing so.
EPS plate can not use the dark cable way, must use PVC flame retardant pipe line, need to use the hole opening device, open out also good-looking.
