1. Bond the edge of the waterproof membrane beyond 10-15mm of the rubber coating ring. 2. Align the positioning hole on the upper part of the waterproof membrane with the sheet metal bump.
1. Bonding shall be carried out at the place where the edge of the waterproof film exceeds the rubber ring by 10-15mm. 2. Align the positioning hole on the upper part of the waterproof film with the convex point of the sheet metal.
1. Glue the edge of the waterproof film 10-15mm beyond the glue ring 2. Align the positioning hole on the upper part of the waterproof film with the bump of the sheet metal.