... cold, mark, main is to distinguish which is hot water, which is cold water.Angle valves roleAngle valves have four main role: (1 ... beautiful and easy. So, general bridal chamber decorates are indispensable water warms accessories, so when decorating bridal chamber of stylist also ... , water heater, if you only 2 a kitchen a guard need 7, more can only according to the calculation. cold hot water angle ...