Inch uses DN to represent, For example,1. 5 inches for DN40，2 inches for DN50，metric uses pipe diameters to represent, for example, 1. 5 inches for 50 pipe diameters, 2 inches for 63 pipe diameters.

In pursuit of rapid growth in achievement,pursues the business philosophy of "quality, management, innovation", introduces the advanced production management model of Japanese enterprises, implements lean management, from automatic smt patch to autom

Note that the handle of the sand cylinder head control valve must be placed in the backwashing before filtering normally.

Our sauna stove is guaranteed for one year, and the heating tube and the circuit board are guaranteed for three months.