Гантели стальной фибры

steel type:Q195--235 thickness: 0.4--0.8mm width:0.5--3.0mm length: 20--35mm tensile strength:>700MPa Features are steel fiber for dumbbell and cross-section areas for waist peng shape. Its outstanding effect is: steel fiber used in highway dumbbells can make pavement thickness reduce 30 50%, prolonging the 3-5 times. Used for construction of bridge deck can make weight drops 40%. Rather than foreign steel fiber better performance, cost price lower, more abundant sources.