1) R2V Draft
R2V型牵伸
2) draft form
牵伸型式
3) V-draft
V型牵伸
4) drafting system VC
VC型牵伸
5) draft arrangement SKF
SKF型牵伸
6) draft arrangement HP
HP型牵伸
补充资料:巴登霍伊尔氏牵伸术