The company now can produce materials for 0.15 mm-30mm between various mechanical springs, spring crafts, toys spring, extention spring, torsion spring, special springs, etc., but also by the production of large diameter customer requirements (100-800 mm) springs. Clockwork spring (Scroll spring) can produce material for the (0.2-4) * (3-120) mm between the timer Clockwork spring. Instrument. Toys Clockwork spring. Vacuum cleaner hung up spring (Power to cable boxes) . mechanical spring rolls. car Clockwork spring. various admission line Clockwork spring. product type complete high hardness. good elasticity. strong anti-fatigue. cheap and of good quality.