... .) and with high temperature and feed cut off by forging and polishing treatment-machined and electroplating and assemblyAngle ... the same, heat and cold, mark, main is to distinguish which is hot water, which is cold ... triangle valve shut it off, don't have to shut the home always valve. (4) is ... and can't be replaced, copper is easier to change.How to calculate the triangle valve usageThe toilet one, ...