Cronage Earthing Accessories have high quality copper alloy material which provide wanted strength to the part to ensure its proper mechanism. Size & Types: Rain Water Pipe Bond, Jointing Clamp, B-Bond, Tee-Clamp, U Bolt Rod to Cable Clamp, Tower Bond Clamp, U Bolt Rod Clamp, Rod to Cable Lug Clamp. Material: Brass - Gunmetal - Bronze - copper - SS - are main metals used in manufacturing the equipmentâ??s in the form of clamps, nut bolts. Finish:Natural, Nickel Plated, Tin Plated or any coating as per customer specification.