QJH-40WL,QJH-10F,高压球芯截止阀QJH-40WL,QJH-10F,高压球芯截止阀QJH-40WL,QJH-10F,高压球芯截止阀

QJH-10B,QJH-15B,QJH-20B,QJH-25B,高压球芯截止阀
QJH-32B,QJH-40B,QJH-50F1,QJH-65F1,QJH-80F1，高压球芯截止阀
QJH-06NL,QJH-10NL,QJH-15NL,QJH-20NL,高压球芯截止阀
QJH-25NL,QJH-32NL,QJH-40NL,高压球芯截止阀
QJH-06WL,QJH-10WL,QJH-15WL,QJH-20WL,高压球芯截止阀
QJH-25WL,QJH-32WL,QJH-40WL,高压球芯截止阀
QJH-10F,QJH-15F,QJH-20F,QJH-25F,高压球芯截止阀
QJH-32F,QJH-40F,高压球芯截止阀