... Material: aluminium, grey iron, malleable iron stainless steel 2) Ingress protection: 1 way, 2 way others Packing: 100pcs Features:1) Material: aluminium, ... grey iron, malleable iron stainless steel 2) Ingress protection ... Available size: 1", 11/4", 11/2", and 2" (with different dimensions)Way/through box-3/4":1) Internal dimensions: ...