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Thickening and explosion-proof: the laboratory rubber extrusion pump airbag is thickened, which has the ability of explosion-proof and anti-rupture, and has strong endurance. Easy to operate: connect the rubber air pipe to the instrument or equipment that needs to be filled, and manually squeeze the rubber ball to pressurize the instrument and equipment to obtain the required pressure Natural rubber: The rubber squeeze bulb is made of natural rubber, which has been processed and has the advantages of strong elasticity, soft hand feeling and rapid inflation No air leakage: The rubber squeeze ball has excellent sealing performance, and the components are tightly connected, which can effectively prevent air leakage and have strong anti-aging ability Safety: The laboratory suction ball is made of impeccable rubber to ensure non-toxic, odorless, safe and performance, so that you can use it safely and at ease