少妇无码AV无码专区在线观看,川上优精品一区二区,不卡中文字幕在线播放,婷婷99

Name：The molding sand high-temperature strength tester (modeling materials, high-tempDescription：

Name：The type shell high temperature deformation testerDescription：

Name：The type shell high temperature flexural strength testerDescription：

Name：Direct reading permeability testerDescription：

Name：Grinding wheel moistened sand machineDescription：

Name：Hydraulic strength testing machineDescription：

Name：Hammer system prototypeDescription：

Name：Material high temperature character measure instrumentDescription：(video-sinter point testing devices, high-temperature microscopes) The shape measurement instruments applicable to the materials, metals, non-metallic materials sinter point temperature, a high temperature went refractoriness projection devices. The equipment materials through optical devices observation volume contraction in the heating process, expansion, except, of the flow-ball situation, the scope and measurement materials sinter melting temperature range performance.