... The sanitary valves concerns as well as structure.2. Equipment:Acid tank, caustia alkaine tank, and warm warer tank one for ... 99 minutes 59 seconds, changed to constant temp.99°(2) Acid clean 1 sec. to 99 min. 59sec, changed to ... 't influence the cleaning result because of the worker's difference,on the contrary,it can improve the products' ... whole-automation system,so it is easy for customer's selection