... ,CN7M,CF8C,317LSpecial Alloy CE aproved 150lb ceramic knife gate valve Apply to such as ash, mud slag, coal slurry ... piping system for coal preparation plantPneumatic 150lb ceramic knife gate valve features:1, seal by structural ceramics, can prevent ... ,ANSI,DIN BS,AND JIS .Contact Person:VELLIAN Contact information:86-577-67926600M.B:8613757739119Skype:kettykojo-valve 150LB ceramic knife gate valve