供货贝雷片,受弯时顺木纹剪应力为2.7 MPa 河北厂家 ¥6.00 供货贝雷片,弹性模量E=98.5×105MPa, 河北 ¥6.00 供货贝雷片,16锰钢拉应力、压应力及弯应力为1.3×210=273 MPa 河北发车 ¥6.00 供货贝雷片,钢材剪应力为1.3×160=208 MPa 河北发车 ¥6.00 供货贝雷片,30铬锰钛拉应力、压应力及弯应力为0.85×1300=1105 MPa, 河北 ¥6.00 sell anchor head for rebar, hrb400, in handan city ¥0.70