Detail Specifications / Descriptions

For PVC.
Nowadays, every country’s windows are made by aluminum, iron or stainless steel. If we want to combine these materials, we could use self drilling screws or self tapping screws. However, if we want to use the self tapping screws, the thickness of the iron sheet supposes not over 1mm.
Specifications: ANSI, IFI, DIN, ISO, BS, JIS, According to customer’s drawing.