Electro-hydraulic hydrometer density meter 1.100-1.300 battery hydrometer electrolyte density meter 5.0640 sold.21,160 so'm
Straight impact absorption bottle impact gas sampling tube 10ml25ml50ml75ml bubble type gas extraction 0.015 sold.42,319 so'm
Quartz glass handle beaker precious metal special refining 1L2L5L10L high temperature 1300 degrees open flame direct burning 5.029 sold.235,103 so'm
Cardiology stethoscope stainless steel stethoscope professional stethoscope English color box packaging Stethscope 0.022 sold.164,573 so'm
Teaching instrument Galileo ideal Bevel demonstrator new curriculum standard high school Bevel Experimental demonstrator high school physics 0.013 sold.611,268 so'm
Lever ruler and bracket aluminum alloy lever with hook wooden lever ruler metal hook code exploration lever 0.074 sold.25,862 so'm
Spherical Conductor Pillow Conductor Physics Electrostatic Induction Charge Distribution Teaching Experimental Instrument J23041 23009 0.06 sold.94,042 so'm
Density meter ratio light meter 0.7-1.0/hydrometer 0-70 pomeres pomeres hydrometer chemical experiment equipment 5.0101 sold.13,166 so'm
High precision analysis laboratory electronic balance 0.01g laboratory precision balance jewelry scale kitchen scale science 5.065 sold.1,034,454 so'm
02003 punching plywood chemical teaching aids wooden rubber plug punching student instrument punching plywood 0.042 sold.42,319 so'm
Large peach blossom model diameter 330mm typical dicotyledonous peach blossom model flower structure anatomy teaching model 5.0136 sold.235,103 so'm
39152 Earth interior structure model English version earth interior structure model geographic model globe 5.064 sold.564,248 so'm
33305 chromosome change model assembly in meiosis magnetic 280 * 180mm biological teaching instrument 5.027 sold.103,446 so'm
JOANLAB Single Channel Manual Pipette Whole Disinfection Micro Adjustable Pipette Sampler 5.080 sold.742,926 so'm
Heart beat and blood circulation model 33218 dynamic demonstration biological experiment equipment teaching instrument 4.836 sold.846,371 so'm
Standard iron stand square seat bracket drip table Flask clamp chemical experiment equipment teaching instrument 5.0573 sold.78,995 so'm
30001 geometric shape model large primary school mathematics learning tools primary school science experiment equipment teaching instrument 0.04 sold.235,103 so'm
26021 hydrogen fuel cell tester new curriculum standard teaching instrument high school student teacher physical instrument manufacturer 5.033 sold.352,655 so'm
Experimental stainless steel sheet interface clamp label clamp clamp clamp clamp clamp 19#24#29#34#40#14# 5.0562 sold.7,994 so'm
Chuda 60mm Metal Stainless Steel Chinese English Compass Compass for Students Outdoor Sports Compass 5.0179 sold.7,524 so'm
Sucker filter device Buchner funnel 1000ml experimental device to reduce the pressure of the suction filter bottle physical experimental equipment 0.07 sold.191,374 so'm
Electromagnetic Dot Timer Initial Senior high school Physical Free Fall Acceleration Experiment Teaching Aware Paper Feeer Toner Tray 0.00 sold.5,643 so'm
Fifth grade second volume heat transfer in metal temperature sensitive ink scientific experimental materials temperature sensitive ink powder 10g 0.063 sold.23,511 so'm
Single pendulum experimental device suit single pendulum small steel ball group movement law of single pendulum junior high school physical mechanics experimental equipment 0.052 sold.98,744 so'm
Carbon allotrope diamond graphite soccer ball alkene C60 sodium chloride chemical molecular structure model teaching aid 0.04 sold.30,564 so'm
Third grade first volume second volume primary school science experiment suit primary school student education edition supporting equipment materials ainiu children 0.04 sold.554,844 so'm
Light three primary color synthesis tester junior high school grade eight or nine physical optical experiment equipment teaching instrument 0.034 sold.25,862 so'm
Bacteria model nuclear model demonstration student biological teaching model amplification model teaching instrument 0.079 sold.178,679 so'm
Plastic lever ruler and bracket bar balance experimental primary school scientific inquiry with hook code with hook teaching aid 1.074 sold.28,213 so'm
Prland Pipette German BRAND Pipette Single-channel Electric Manual Multi-channel Pipette First-class Agent 5.013 sold.940,412 so'm
Electronic cloud hybrid orbital model seven-piece S/SP/SP2/SP2/SP2/PX/PY/PZ chemistry teaching instrument 5.010 sold.846,371 so'm
Oil film tester 22215 physical chemistry estimation of molecular size oleate single molecule arrangement physical instrument 5.0143 sold.84,638 so'm
Middle school physics teaching instrument left and right hand rule demonstrator electromagnetic experiment Lorentz magnetic demonstrator 0.097 sold.70,531 so'm
In stock supply K4074 American outdoor army green compass arms North needle directional compass with slope meter 0.0137 sold.183,381 so'm
Periscope Removable Assembly Materials Optical Refraction Propagation Primary School Science Teaching Instrument 5.0136 sold.28,213 so'm
Calcium carbonate 500g limestone powder marble chemical reagent drug experimental equipment teaching instrument 5.04 sold.70,531 so'm
Small lamp holder screw bulb holder primary and secondary school experimental equipment physical laboratory teaching instrument factory wholesale 5.0124 sold.3,292 so'm
Pointer electroscope with single electrometer to verify electrostatic Faraday cylinder physics experimental equipment teaching 5.025 sold.160,811 so'm
Water electrolysis tester J26002 electrolyzer miniature hydrogen production device chemical experiment equipment teaching instrument 5.021 sold.56,425 so'm