Constant Torque Spring 定型发条 ; 恒力矩弹簧

torque spring group 扭力弹簧组

torque spring shim 扭力弹簧垫片

torque spring energy store 扭簧储能

torque rise spring 增扭弹簧

spring torque 弹簧力矩

Spring Torque Tester 弹簧指针式扭矩测试仪

torque limiting spring 扭矩限制簧