Sub-zero valve 低温阀门

zero lash valve lifter 无隙起阀器 ; 无间隙气门挺杆

zero-lash valve tappet 无间隙的气门挺杆

zero lap valve 零叠量阀

Automatic zero set valve 自动定零阀

Zero opening valve 零开口阀

Zero adjustment valve 代表零点调整设置

zero-lash valve lifter 无隙起阀器

zero clearance valve tappet 无间隙气门挺杆