A: Using portable cutting machine.
A: Portable electric drill.
A: Overlap, on the vertical direction overlap 150-200mm, on the horizontal direction overlap one wave.
A: Temperature range: From Minus 40degree to 72 degree
A: White, blue, brick red, green, grey etc. Customers can also provide sample color to us
A: Yes, we have normal item, like 840, 1130 we have stock, other item base on the customer order will have a little bit.
A: We promise within guarantee, free for replace the Products which with quality problems