·閥桿設計 ; M( @1 d% P& k! {9 ~8 `" O
" L" ?5 ^8 R* u- ?7 u0 f
采用整體鍛造工藝制成,按照標準要求確定最小直徑。 2 |" K- O4 E( _8 h5 n. I! u; s2 b
; _( U( J3 c0 G) L* i5 UStem Design : ]" T0 O4 h7 i ' |8 D% e8 @0 b' gThe stem is of integral forged design,The minimum diameter of the stem shall per the standard requirement.