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DIN 2391 ST52 H7-H10 tolerance hydraulic cylinder honed tube, US $ 750 - 1300 / Ton, ASTM, bs, DIN, GB, JIS, ANSI A213M-2001, ASME B36.10M-2004, ASTM A1020-2002, ASTM A106-2006, ASTM A53-2007, BS 1139, BS EN 39, BS EN10025, DIN 17175, DIN 2391, DIN EN 10025, DIN EN 10305, SEW680, GB 6479-2000, JIS G