岛国AV片在线观看无码_肉肉的各种姿势高H细文_性禁播电影_又黄又湿真实网站不付费

Instrument use:
Automatic sampling of micro section for metallographic analysis of PCB circuit board
Instrument characteristics:
1. the sampling machine adopts the drilling and milling method to avoid the deformation of the sample and ensure the accuracy of the test
2. control mode: PLC programming control
3. infrared positioning