1 in 360
1 in 720
1 in 1000
1 in 1200
G/8
G/10
G/12
G/15
less than 2 mm/m
more than 2 mm/m
less than 4 mm/m
more than 4mm/m
40 mm
50 mm
75 mm
100 mm
1 in 250
1 in 222
1 in 235
1 in 275