... be reinforced by copper wire, nickel wire or stainless wire.Size (mm): 5 × 5 , 6 × 6 , 8 × 8 , 10 × 10 , 12 × 12 , 14 ... and boiler Cable insulation claddings Specifications: Diameter (mm): 3 , 4 , 5 , 6 , 8 , 10 , 12 , 14 , 15 , 16 , 18 , 20 , 25 ...