Памылка фармату электроннай пошты
emailCannotEmpty
emailDoesExist
pwdLetterLimtTip
inconsistentPwd
pwdLetterLimtTip
inconsistentPwd
 
	
	The ball valve is used for controlling flow and reducing pressure. The butterfly valve is used to control the flow of fluid by moving a disc-shaped plate through an opening, allowing specific flow of various port sizes and pressure standards to pass through