1、拉伸弹簧
拉伸弹簧（Extension Springs）是承受轴向拉力的螺旋弹簧。许多不同的终端装置或者“钩”是用来保证拉伸弹簧的拉力来源。
2、[机]牵引簧
...extension micrometer 伸长式测微计，伸长式千分尺extension spring 牵引簧extension tripod 伸缩三角架 ...
3、[机]牵簧
... extension shaft 套管伸缩轴 extension spring 牵簧 extension tube 加长管 ...
4、拉簧
...拉簧，扭簧，可靠性。 [gap=665]s level enters the mold; Feed control organization; Presses the reed; Side edge; Extension spring; Torsional spring ; Reliability.
extension coil spring拉伸螺旋弹簧
extension n spring牵簧
extension spiral spring拉伸螺旋弹簧
helical extension spring螺旋拉伸弹簧
big extension spring大拉簧
No Account Extension Spring无计延春日
coil extension spring圆柱螺旋拉伸弹簧
three-jaw extension spring三爪延簧