軟密封絲扣閘閥

QZF-89型全天(tian)候阻火呼(hu)吸閥..

ZFQ-1全(quan)天候（阻火）呼吸閥..

FZT-1 阻火通氣帽(mao)

PVC塑料視鏡

Q41F-10U PVC塑(su)料法(fa)蘭球(qiu)閥..

PPH法蘭截止閥

J41F-10S/U/V塑(su)料截止(zhi)閥..

J41F-10F法蘭式PVDF塑料截(jie)..