D. The sping is stainless steel and can adjust 3-20mm for different thickness of glass.

E. All part contact water include the axle in thewashing machine is stainless steel,copper or waterproofaluminum,nylon and so on, it will not rust for long time running,and easy to maintain.

F. Gear driving system take chainreaction so it will not leave the original positon after long timerunnning.

G.. Dry part frame is stainless steel wil not dirtythe glass second time.

,the circle wind also down thenoise.

H. The circle hot wind down thenoice come from the machine( in winter the hot wind temperature canreach 40 even no heating).