fire hose coupling 1) Type: Storz , Ansi Pin , John morris , China , Russian; 2) Size: from 1" to 6"; 3) material: aluminum. fire hose coupling are used in a wide variety of applications for petroleum handling, chemical processing, dry bulk handling, agricultural, and water, etc. 1) Material:Aluminum;2) Cast method available: Gravity Cast, Sand Cast ;3) Type: Storz type, Ansi Pin Type, John ...