Pasteur Pipettes amapangidwa ndi zinthu zowoneka bwino za polima-LDPE, zomwe zimagwiritsidwa ntchito kwambiri kukhetsa, kusamutsa ndi kunyamula njira ndipo zimagwiritsidwa ntchito kwambiri potengera cholowa, mankhwala & mankhwala, kupewa miliri, zamankhwala, biochemistry, petrification, ndi zina zambiri ...