ASTM C78 Related Standards: ASTM C31, ASTM C42, ASTM C192, ASTM C617, astm c1077, astm e4 混凝土抗弯强度 Qty.ModelDescription 1 H-3033CL 带微型泵的混凝土梁测试仪,18",三点 1Choose One: HCM-1142 弯曲压缩机,100kN HCM-1143 弯曲压缩机,200kN HCM-1144 弯曲压缩机,300kN