1. Item: Nut rotatable coupling (press fitting); 2. SS304,316; 3 ... be customized according to correspondents' needs.Water working pressure high to1.6MPa (232psi);Only need 8 second ... widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline ... , not oil-resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air and ...