• Try to put the blocks in order when you install the blocks; • Keep expansion gap every 1 centimeter per 1meter evenly distributed when place the blocks; • The speed of temperature rise and fall should not be too fast, otherwise it will
#Advantage 1. Compared with square holes, the hexagonal hole structure have following advantage -- the hole has six 120 angle, smaller curvature of the corners, larger exchange area, lower 14% pressure drop, higher heat exchange efficiency, can be increase.