Supply of tube brush, nylon tube brush, test tube brush

 Yuqing cold-pressed terminal

 JM CONCEPT temperature controller

 DELIXI knife switch HS12-400

 Supply of tip tap

 Supply of magnetic vibrostand, mechanical vibrostand, electrodynamics vibration generator

 PC board

 Supply of kit box car (4 drawers)

 Mass supply of loudspeaker dust screen and dustcloth

 Water supply PE pipe

 Differential protective system of transformer

 Supply of electrostatic grounding alarm (2)

 RW11-10 100 drop-out fuse

 Supply of electromagnetic speed-adjustable motor with speed regulator, stepless reducer

 Supply of lxwp-120 suspension-type glass insulator