The multifinger caliper tool string to be used for casing inspection was centralized using the combination of a strong, optimally placed, spring loaded roller and stiff arm centralizers.
The world's largest spring applied heavy duty disc brake caliper!
世界上最大的弹簧作动重型盘式制动钳！
3
The invention discloses a caliper brake for a bicycle. The caliper brake comprises a left brake fork, a right brake fork, a penetrating shaft and a return spring.