Brass drain valve. -Two tank sizes - choice of 32- and 50- gallon (121- and 189- liter) tank capacities provide for a wide range of applications.是什么意思_Brass drain valve. -Two tank sizes - choice of 32- and 50- gallon (121- and 189- liter) tank capacities provide for a wide range of applications.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句