33120轴承（高品质）
辊壳（齿头型）65CrMnTi
带滤油器的滤油塞（全套）
主轴箱
齿轮减速器
辊壳（齿头型）40Cr
Used for material extrusion molding of 560 model equipment, 20CRMNTI alloy steel material has both strength and toughness (used for material extrusion molding of 560 model equipment, 20CRMNTI alloy steel material has both strength and toughness)
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