& K; j' a! R' T$ Q" j6 k, R采用整体锻造工艺制成,按照标准要求确定最小直径。 6 u$ |6 U. h6 _7 c% n
, J3 n1 ?" }, [4 GStem Design - X3 d$ b! T* E4 u! U) W, R
$ s( `" Q. K" r7 v( M. O; r& Y
The stem is of integral forged design,The minimum diameter of the stem shall per the standard requirement.