... tube,3.7 times than smooth tube 2.Small flow rate, big temp. difference, 3.Best choice for heat ... water,tap water,antifreeze (glycol solution) Max working pressure is 32 Bar.3)This structure A suitable for ... ,thickness:4mm. Features:1)Thanks to the small flow rate, big temperature difference design,easy to get the high ... and the water flow is smooth,thus keep it avoid dirty.4)The water pipe is on the ...