20 R2-10-38.1-6.0-2.0(溶接タイプ) R2-4-31.75-7.0-2.0 R2-5.2-50-6.0-2.6 R2-2.4-25.4-5.0-1.2(チェーン付) 37 38 39 40 e d f ■使用例 Examples of application (with chain) (welded type)
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