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Spring Hammer is a hammer that anyone can use easily and conveniently using the elasticity.
The design of the Bar have a distinctive shape to that of the existing one.
Hand holding the front, the back of the release handle is pulled,
then, the hammer nails into force of elasticity of the spring.
The weak force, as well as the elderly are also available without difficulty adjusting to the force.
The spring hammer is a universal design that ensures safety and ease of use.
Cheonan, South Korea
chang ho Yi,