Automatic window opener

Product features:

Apply to top ,middle down window ,fall outside window ,pour inside window ,the casement  windows ,skylight ,ect. Various  kinds of  windows.

Technical features:

Easy,elegant appearance design, overload overload protection,low noise design.

Use double deck metal chain piece of design ,operation more stanle and smooth.

Suitable for open window type of chain, stainless steel chain.

Avariety of thrust, pushing course to choose from .more than 12000 times exit and back to the test.

The biggest push pull:600~1200N, stationary stat lock of tension: 2000N.