单向阀:AJ-H*10B,
AJ-H*20B,AJ-H*32B,
DF-B10H*, DF-B20H*,
DF-B32H*, QQ:911671068 A1Y-H*10B,
A1Y-H*20B, DFY-B10H*,
DFY-L10H*, DFY-L20H*,
DFY-B20H*, DFY-L32H*,
DFY-B32H* http://www.yuken-wx.com/productID/product_detail-13282670.html