Gothic square pass 弧边方形孔型
diamond -square pass sequence 菱一方孔型系统
square pass sequence 六角方孔型系统
fluted square pass 凹边方孔型
oval into square pass 是方孔型的椭圆
square pass and catching 四角传接球
square steel pass design 方钢孔型设计
square roughing pass 方形粗轧孔型
square move pass and catching 四角移位传接球
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