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1、CNC鋁材鉆孔、攻牙標(biāo)準(zhǔn)參數(shù)表規(guī)格普通絲攻擠壓絲攻底孔直徑SF底孔直徑SFM1.0×0.250.75~0.781200.250.86~0.884000.25M1.2×0.250.95~0.981500.251.06~1.084500.25M1.4×0.31.1~1.142100.31.24~1.255000.3M1.6×0.351.25~1.322800.351.41~1.435600.35M1.5×0.351.15~1.22500.35