CKD中文名稱喜開理，是日本著名的氣動，專業生產電磁閥，氣缸，三聯件，開關等氣動元件。 

4F230-08型CKD電磁閥：喜開理電磁閥日本*，實用性強，適用范圍廣，措施周到、強化安全性手動裝置的標準配備是帶有保護罩，內置排氣錯誤動作的防止閥，進氣口的標準配備為帶有過濾器。

4F520-15
4F720-20
4F720-25
4F730-20
4F740-20
4F740-25
4F640-20
4F650-15
4F650-20
4F630-20
4F640-15
4F620-20
4F540-15
4F210-08
4F220-08
4F230-08
4F240-08 
4F340-08
4F340-10
4F320-08
4F320-10
4F330-08
4F330-10
4F550-10
4F550-15
4F410-08
4F410-10
4F420-08
4F420-10
4F430-08
4F430-10
4F440-08
4F530-10
4F530-15
4F540-10
4F310-10
4F310-08
4F730-25
4F450-08
4F450-10
4F510-10
4F510-15
4F520-10
4F610-15
4F610-20
4F620-15
4F750-20
4F630-15
4F710-20
4F710-25