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Standard | UIC standard | BS standard | JIS standard | ISCR standard | China standard | South-American standard |
Type | UIC 54 / UIC 60 | BS60A / BS75A / BS80A | JIS37 / JIS50 | ISCR50 / ISCR60 / ISCR70 | A(I II) / B / III | TJ45 / TJ57 |
Material | 45#,55#,etc | Spring steel |