... and health, light and electron, energy construction and so on. Introcuction : a)The common specification is DN6-DN450. b ... )the material is Austenitic stainless steel, mainly metal hose304, metal hose 316,and produce according to buyers resquest. c ... contains metal hose 10kg pressure, metal hose 16kg pressure, metal hose 25kg pressure, metal hose 40kg pressure and so on. d) this products with ...