在生产过程中随机抽样3个批次，在每批产品生产过程的前、中、后三个阶段，

During the production process, 3 batches are randomly sampled, and samples are taken at the first, middle, and last stages of the production process of each batch of products. At least 5 products are separated between every two samples. Each batch of 32 samples is used to test the assembly appearance and assembly limit of the core rod, 41 samples are used for sealing (chemical method), and 32 samples are sampled for labeling and batch number printing.

Random sampling of 3 batches in the production process, in each batch of product production process in the first, middle and back three stages, respectively, sampling, each two samples between at least 5 products. Each batch of sampling 32 for testing the core rod assembly appearance, assembly limits, sampling 41 for sealing (chemical method), labeling and batch number printing each sampling 32.

Three batches are randomly sampled in the production process, and samples are taken at the first, middle and last stages of the production process of each batch of products. At least five products are separated from each other. 32 samples were taken from each batch to test the assembly appearance and assembly limit of core rods, 41 samples were taken for sealing (chemical method), 32 samples were taken for labeling and batch printing.<br>