| |||
double bend; double-bend | |||
twin elbow | |||
| |||
double-bend fitting; double-bending fitting | |||
| |||
double offset (double offset) |
双弯头 : 25 phrases in 7 subjects |
Architecture | 2 |
Automobiles | 3 |
Drilling | 1 |
Ecology | 1 |
Mechanics | 2 |
Oil / petroleum | 2 |
Technology | 14 |