·阀杆设计 # W" k: X9 h! _0 |4 M! M( ], N7 U. A' E4 u3 U, C$ B/ k
采用整体锻造工艺制成,按照标准要求确定最小直径。 & @5 l7 [+ L6 A/ N5 @* J8 S: Z : n5 D1 ~# O" F7 y) wStem Design % j. A- A2 l# |) F; Q
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The stem is of integral forged design,The minimum diameter of the stem shall per the standard requirement.