1 Alka-Seltzer Plus Day and Night Cold FormulasÂ® (as a combination product containing Aspirin, Dextromethorphan, Phenylephrine)see Phenylephrine.  Alka-Seltzer Plus Day and Night Cold FormulasÂ® (as a combination product containing Aspirin, Dextromethorphan, Phenylephrine)see Dextromethorphan.
Injection moulding is widely used for manufacturing a variety of parts, from the smallest components to entire body panels of cars.his process is actually an injection moulding process performed twice and therefore has a much smaller margin of error. In the first step, the base color material is moulded into a basic shape, which contains spaces for the second shot.
Next Page (Injection Moulding Machine). The plastic injection moulding process produces large numbers of parts of high quality with great accuracy, very quickly. Plastic material in the form of granules is melted until soft enough to be injected under pressure to fill a mould.The result is that the shape is exactly copied. Once the plastic moulding has cooled sufficiently to harden the mould opens releasing the part. The whole injection moulding process then repeats.NJECTION-the molten plastic that has been melted from pellet form in the barrel of the moulding machine (see next section) is injected under pressure into the mould. Hold Mould Closed. DWELLING-after the molten plastic has been injected into the mould pressure is applied to ensure all cavities are filled.