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1相关标准 DIN34 109,机械制造用活塞环:一般说明。 DIN34 146,机械制造用活塞环:S—环,公称直径200~700mm的开槽油环。2尺寸规格、标记
1 Related Standards DIN34 109, Piston rings for machine construction: general instructions. DIN34 146, Piston rings for machine construction: S-ring, slotted oil ring with nominal diameter of 200 ~ 700mm. 2 size specifications, marking