Supply of XHW series ring stiffness tester

 Supply of 9mm LED monochromatic lamp string (red and yellow), LED lamp string with luminous characters

 Supply of square tube

 Supply of DC speed regulator (5)

 Imported silicon steel sheet 17

 Supply of AVIC Machinery boring machine

 Kaleja relay

 Supply of tributyl phosphate (industrial grade)

 Supply of quality heat-resisting conductive resin

 Supply of HCNR200, HCNR201 and LOC110 high linear photoelectric coupler

 Supply of single-phase 90W adjustable-speed motor, 40KB gearbox, 15mm output shaft speed regulator

 MCO500-16IO1,MCO500-18IO1 IXYS module

 Combined drill pipe torsion tester

 Supply of indoor instrumental examination magnifying glass

 Supply of LR2512 F 1% 0.001Ω 1mΩ alloy resistor

 Supply of BEL fuse MRT3.15

 Supply of pure palladium chloride

 Environmental transparent all-purpose adhesive

 Imported sand belt

 Supply of HB-2 Brinell hardenss tester (hammer type)