QJH-10B,QJH-20F,QJH-40NL,QJH-50F,QJH-25WL,QJH-25NL,QJH-32WL,QJH-40F,QJH-20B,QJH-10WL,QJH-25NL,高压球芯截止

QJH-10B,QJH-20F,QJH-40NL,QJH-50F,QJH-25WL,QJH-25NL,QJH-32WL,QJH-40F,QJH-20B,QJH-10WL,QJH-25NL,高压球芯截止阀

QJH-10B,QJH-15B,QJH-20B,QJH-25B,QJH-32B,QJH-40B,

QJH-50F,QJH-65F,QJH-80F,QJH-06NL,QJH-10NL,QJH-15NL,

QJH-20NL,QJH-25NL,QJH-32NL,QJH-40NL,QJH-06WL,QJH-10WL,

QJH-15WL,QJH-20WL,QJH-25WL,QJH-32WL,QJH-40WL,QJH-10F,

QJH-15F,QJH-20F,QJH-25F,QJH-32F,QJH-40F,