Demonstration pulley set large J21031 mechanical effect mechanical demonstration pulley set two single three and three series pulley
5.0
266 sold.
75,233 so'm
Teaching instrument | 2,000+ products
Centripetal force demonstrator J2130 verifies the initial Senior high school of physical and mechanical decomposition teaching aids for centripetal force experiment
0.0
32 sold.
46,551 so'm
Qipu generator carbon dioxide production device chemical instrument glass gas generator Qipu generator
5.0
242 sold.
39,968 so'm
Ma Debao Hemisphere (Cast Iron) Ma Debao Hemisphere Iron Ball Experimenter J2115 Science and Technology Experimental Teaching Instrument
0.0
27 sold.
150,466 so'm
Handheld Sieve Soil Sieve Plastic Sieve Replaceable Sieve Elementary School Science Experiment
0.0
246 sold.
16,458 so'm
Atmospheric pressure series tester 21020-type atmospheric pressure and density relationship experimental instrument junior and senior high school instrument
0.0
32 sold.
103,446 so'm
Cylinder dynamometer 5N Newton dynamometer tension meter spring scale experiment 14005 teaching instrument
5.0
1,287 sold.
21,160 so'm
Three-color light source physical optics experiment teaching instrument
5.0
191 sold.
75,233 so'm
Calorimeter J22201 Specific Heat Electric Heat Equivalent Thermal Physics Experiment Measurement Thermal Equipment
0.0
667 sold.
84,638 so'm
Micro Distillation Experimental Set 100ml Small Flask for Essential Oil Distilled Water Purification Straight Condenser Tube
5.0
172 sold.
235,103 so'm
Optical bench optical experiment convex lens imaging experimental equipment optical lens optical experiment box F light source imaging
0.0
186 sold.
188,083 so'm
Wooden ruler 1 m double-sided scale ruler ruler 1 m wooden ruler 100cm wooden ruler teaching aids ruler
4.8
156 sold.
11,756 so'm
Teaching Instrument Geography Model Lunar Globe Instrument Large Astronomical Teaching Demonstration Instrument
0.0
20 sold.
67,710 so'm
Calorimeter Junior High School Physics Teaching Instrument J22201 Specific Heat Experimental Equipment for Electrothermal Equivalent Objects Teaching Aids
0.0
121 sold.
94,042 so'm
Scalpel (dissecting knife handle + blade) dissecting tool apparatus biological experiment equipment teaching instrument
5.0
1,126 sold.
11,756 so'm
Radiometer Crooks Sunshine Windmill Amazon Light Pressure Teaching Instrument Science Instrument Gift Ornaments
0.0
48 sold.
305,634 so'm
Authentic Cobalt Glass Sheet Cobalt Glass Sheet Blue Glass Sheet Flame Reaction Glass Sheet
5.0
291 sold.
21,160 so'm
Sinan model J39154 ancient finger north and south needle compass geography history teaching instrument teaching aids experiment
4.5
160 sold.
145,764 so'm
J29010 Primary School junior high school science physics experiment teaching instrument for scientific mechanics car Bevel
0.0
1,684 sold.
10,345 so'm
Rain gauge rainfall measuring rain tube plastic rain measuring cylinder Primary School natural science rain and snow measurement geography teaching
5.0
142 sold.
37,617 so'm
Electric Feather inspection research electrostatic experiment electrical experiment equipment 2317-type junior and senior high school teaching experiment instrument
0.0
44 sold.
44,670 so'm
Otology examination endoscopy otoscope otoscope diagnosis flashlight pen flashlight medical flashlight
5.0
260 sold.
35,266 so'm
Connecting device physical mechanics liquid pressure experimental equipment J2140 glass teaching instrument supplies teaching aids
0.0
15 sold.
39,968 so'm
Steel quality tuning fork 8 PCs music tuning fork set teaching tuning fork set factory direct sales 256-512Hz customizable
0.0
1,364 sold.
423,186 so'm
Foreign trade stethoscope aluminum double-listening double-sided stethoscope single tube stethoscope
5.0
628 sold.
29,623 so'm
High-end gold plated brass advertising gift outdoor compass compass metal crafts tourism souvenir J57
4.9
333 sold.
35,266 so'm
Friction block wood block 6-hole 6-hole 2-hole strip wood block with hook physics experiment equipment for junior and senior high school mechanics high school entrance examination
5.0
437 sold.
9,405 so'm
Strip magnet horseshoe-shaped U-shaped circular magnet teaching students magnetic steel magnet large strong magnetic iron powder chip box
5.0
285 sold.
7,994 so'm
Soil profile specimen community popular science exhibition natural soil profile science textbook geographical specimen observation
5.0
131 sold.
117,552 so'm
Fluid velocity and pressure relationship demonstrator 21022-type physics teaching experimental instrument for junior and senior high schools
0.0
28 sold.
423,186 so'm
Peach blossom model new curriculum standard diameter 330mm typical dicotyledonous flower model flower structure anatomy teaching model
5.0
47 sold.
235,103 so'm
Sliding rheostat 20Ω,2A 5Ω,3A 50Ω,1.5A junior high school physics new curriculum standard adjustable resistance
0.0
20 sold.
30,564 so'm
Edge-covered asbestos net regular asbestos net clay net laboratory alcohol lamp asbestos net heat insulation net heating net
0.0
0 sold.
4,091 so'm
Factory wholesale manual puncher 6*1 group 3*1 group puncher large quantity and excellent price
0.0
960 sold.
23,511 so'm
Grooved probe anorectal surgical instrument anal mirror hook silver surgical puncture teaching instrument teaching instrument
0.0
20 sold.
23,511 so'm
Plastic lever ruler and bracket bar balance experimental primary school scientific inquiry with hook code with hook teaching aid
1.0
74 sold.
28,213 so'm
Fun Physics Science experiment students create small invention air-powered boat, three-in-one functional boat
5.0
2,933 sold.
41,379 so'm
80106 Colorful Translucent Sheet Red, Green and Blue Light Three Primary Color Filter Color Filter Physical Optical Instrument Injection Molding Thickeneding
5.0
90 sold.
6,113 so'm
23008 New electrostatic induction motor teaching instrument physical demonstration experiment generator experimental instrument
5.0
131 sold.
329,145 so'm
17 pieces biological anatomy tool suture silicone thread experiment equipment tool scissors tweezers knife handle teaching instrument
5.0
241 sold.
305,634 so'm