Chemistry
Transparent plastic products with acid and alkali production, cavity volume of 9...
Transparent plastic products with acid and alkali production, cavity volume of 6...
6 points, long 7.5cm, 5cm wide, used as a vessel for simultaneous simultaneous...
The utility model is mainly composed of a wire (Gang Si) as a framework, and the...
Glass instrument bottle mouth seal, suitable for all kinds of test tube flasks, ...
Screw adjustability, applicable to all kinds of different thickness of latex...
Wooden, length not less than 180mm, width 20mm, thickness 10mm. Test tube closed...