·阀杆设计 8 L$ c6 i. _; V! E% l- N- B: `9 v: u+ d7 R/ b( n. A0 x
采用整体锻造工艺制成,按照标准要求确定最小直径。 6 E$ B, e& p6 W# L
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Stem Design / ?3 W- d- q0 f- Q* `& E- H' ?5 C# ]" ^3 Y L1 I
The stem is of integral forged design,The minimum diameter of the stem shall per the standard requirement.