In the crankshaft helical gear of the air-cooled engine, the angle between the center line of the first tooth of the gear and the center line of the first link journal is 20°±15′ during the machining. At the end of the crankshaft, which is nearly 1 m long, it is really difficult to machine such a helical gear with high precision and strict position requirements (see Figure 1). In the past, before the processing, first lift the crankshaft with a crane, find
FLU A&B Antigen Detection Kit (Colloidal Gold Method) is an in vitro rapid qualitative test Detection of influenza A and B nucleoprotein antigens directly from the nose swabs and nasopharyngeal swab samples collected from patients with symptoms and signs of respiratory infection. It is designed to aid in the rapid identification of influenza A and B virus infections.
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