● Material: galvanized steel ● Protection class: IP50 ● Temperature range: -50 ℃ ~ 300 ℃ ● Product Features: 1, super softness and excellent bending properties of two high temperature ● Applications: steel, metallurgy, building fire-fighting facilities, lighting equipment and other galvanized steel stainless steel ID OD inch diameter package HGD-12 HSD-12 12.5 15.7 3/8 "Ф12 50 HGD-15 HSD-15 16.1 19.5 1/2" Ф15 50 HGD- 20 HSD-20 20.8 24.3 3/4 "Ф20 40 HGD-25 HSD-25 26.0 30.0 1" Ф25 30 HGD-32 HSD-32 34.0 39.0 1-1 / 4 "Ф32 30 HGD-38 HSD-38 39.0 44.0 1- 1/2 "Ф38 20 HGD-51 HSD-51 51.0 56.0 2" Ф51 10 HGD-64 HSD-64 63.0 67.5 2-1 / 2 "Ф64 10