
ISO 5296. Synchronous belt drives. Belts. Pitch codes MXL, XXL, XL, L, H, XH and XXH. Metric and inch dimensions
出版:British Standards Institution

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ISO 5296. Synchronous belt drives. Belts. Pitch codes MXL, XXL, XL, L, H, XH and XXH. Metric and inch dimensions
出版:British Standards Institution
专家解读视频