Traditional Culture Encyclopedia - Traditional customs - Why is there so much difference between slingshot steel balls and specifications?
Why is there so much difference between slingshot steel balls and specifications?
Because of the material (wood, iron, zinc alloy, stainless steel, copper, titanium alloy. Aviation aluminum) production process casting, precision casting, laser cutting, wire cutting, fine chamfering, polishing, sand blasting and wire drawing complexity traditional bow, ball bow composite bow and advanced composite bow. This is more clear. Technology and materials determine the safety factor and value.
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