Parameters | Abroad company | Chinese company-1 | Chinese company-2 |
D a/mm | 6.54 | 6.54 | 6.54 |
φ1 /˚ | 45˚ | 45˚ | 45˚ |
H1/mm | 32 | 38 | 38 |
H/mm | 60 | 70 | 70 |
K/mm | 44.6 | 59 | 60.5 |
B4/mm | 43.717 | 45 | 45 |
B1/mm | 80.6 | 86 | 86 |
L/mm | 106 | 105 | 103 |