Size:NO.8 Teeth material: cupronickel Tape material: neoprene Item Unit Date Width of zipper MM 7.0 Total width of zipper MM 70.0 Pulling intension of zipper N perIN minumum250 Strength of the top stop N minumum350 Strength of the bottom stop N minumum350 Airtight KPA minumum100 Dive depth M minumum10 Airtight after 200 times reciprocation KPA minumum90 Dive depth after 200 times reciprprocation M minumum9 Chain smooth N max55 Smooth of top and bottom stop N max75
