闸瓦间隙调整器
brake slack adjuster
brake shoe slack adjuster
闸瓦间隙自动调整
brake sla ck automatically adjusting
闸瓦间隙自动调整器
automatic brake slack adjuster
闸瓦偏磨
brake shoe nonaffine wear
闸瓦试验台
brake shoe inertia dynamometer
中磷闸瓦
medium phosphor cast iron brake shoe
铸铁合成闸瓦
Composite Brake Shoe of Cast Iron