Zhejiang kaisitong valve co,ltd was established in 1984, which has made a perfect quality control and guarantee system .our old factory covers an aera of 5500 squar meters, and the new factory covers 66700 squars meters .we pumped money into creat our brand and improve our product quality. our mainly produces are gates valve , ball valve, globe valve , check valve ,plug valve and especially for our patent oxygen extraction theck valve,high temperature wear-resisting lining gate etc.
We has got 5 pat...
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