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Preformed helical tension clamp take good advantage clamp strength from preformed armor rod and then make the friction to clench the wire, so that the products has disperse the strength and can not so easy to damage the wires.

A) Reduce the dynamic strength from shocking and waving. It can prevent the material snap in strand because of fatigue when the helical wire is working in circles. This products has good shockproof function by itself, so it makes the helical wire in good shockproof.
B) The product is wind the wire equality on the surface of the helical wire, and with more contact area so that disperse the strength.
C) The material of the clamp is processing by mouthpiece pressing, so it is more reliable than the casting processing
D) Be east to install, and the holding strength is 95% bigger than the wire snapping strength, and also with good coherence.