BR钢珠套内径dФdФd1ФDФD0塑胶铝基铜基蓝色塑胶铝基密珠型铜基密珠型蓝色密珠型普通铜基油沟、油嘴型121212.417.6  2304060605084846075161616.421.6  3404466664592926581191919.424.6  360467575581051057090202020.425.6467575581051057090222222.427.6467575581051057090252525.430.6756086867012012080101282828.439.47092928012812890107323232.643.4  48590142142100198198110157363636.647.3110152152120212212120167383838.754.6  595120166166130235235130181454545.759.3150204204160285285180219505050.765.3110174228228190319319200243606060.769.3196250250210350350220265