we supply high quality building clamp, size 135 X 400 X 600mm, 135 X 600 X 800mm, 135 X 800 X 1000mm, 135 X 1000 x 1200mm we supply high quality building clamp. the size we can supply is 135 X 600 X 400 mm, 135 X 800 X 600 MM, 135 X 1000 X 800 mm, 135 X 1200 X 1000 mm, building clamp