High viscosity liquids: sauces, mascara, face creams, lipsticks, jam, chocolate, butter, Vaseline filling, can be rotary valve pump。
P1 / P2-R series of liquid injection volume range: 0-20ML；
P3 / P4-R series of injection fluid volume range：0-174ML。

Low-viscosity liquids: perfume, shampoo, Essence, nail polish remover liquid, fluid, filling the net mouth, can be a one-way valve pump。
P1 / P2-C Series injection fluid volume range：0-20ML；
P3 / P4-C Series liquid injection volume range:0-174ML。