Description

A - Length of hole on board

B - Center to Cewnter distance of two Radius

C - Overall Thickness

D - Thickness of Board

E - Wall Thickness ( if exited )

And Other Radiuses are need to know to make the quote.

This is a type of grommet which is used on cars.

It's made of EPDM rubber, it could be used outdoor for a long time.

http://www.chaoyuerubber.com/