A kind of high elasticity fitness stretcher
A tension device, high elasticity technology, applied in the direction of elastic resistance devices, gymnastic equipment, sports accessories, etc., can solve the problems of insufficient flexibility, insufficient elasticity, heavy spring tension, etc., and achieve the effect of sufficient tension, not easy elasticity, and high elasticity
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[0015] The present invention will be further described below in conjunction with accompanying drawing:
[0016] like figure 1 Shown: the present invention comprises a steel wire 1 and an elastic filling layer 2, the steel wire is multi-strand, and the multiple strands of the steel wire are bent into groups and juxtaposed, and the elastic filling layer is composed of natural rubber, nitrile rubber, vinyl resin, and polyurethane The prepolymer composition of emulsion, highly active polymer polyol, ethylene glycol, diethanolamine, triethylenediamine, silane surfactant, diphenylmethane diisocyanate and polyether polyol; the elastic filling layer will The steel wire is covered inside.
[0017] Specifically, according to the weight ratio, 30% of the natural rubber, 30% of the nitrile rubber, 13% of the vinyl resin, 13% of the polyurethane composite emulsion, 2% of the high active polymer polyol, the 2% of the ethylene glycol, 2% of the diethanolamine, 2% of the triethyldiamine, 2%...
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