QJH-6WL高压截止阀
QJH-100F高压球阀
QJH-80F碳钢高压球阀
QJH-65F不锈钢高压球阀
QJH-50F液压球阀
QJH-40F高压截止阀
QJH-32F高压球阀
QJH-25F碳钢高压球阀
QJH-20F不锈钢高压球阀
QJH-15F液压球阀