·閥桿設計 - b% r# e5 Q [ 3 T v s; Z$ D7 J采用整體鍛造工藝制成,按照標準要求確定最小直徑。 2 ]/ ~. t* T G( d1 V* p$ n) M
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Stem Design # R! K; o! k7 S8 v8 K% j F% r2 p R5 @; y" p9 R6 W. V$ C
The stem is of integral forged design,The minimum diameter of the stem shall per the standard requirement.