... heavy medium piping system for coal preparation plantPneumatic 150lb ceramic knife gate valve features:1, seal by structural ceramics, can ... -61,API598; ISO5208 Material for main parts of 150lb ceramic knife gate valve1. Body: WCB, WCC, LCB, LCC, WC6, ... power generation, chemical andpetrochemical, oil and gas, pulp and paper,mining, and ship-building industries. We concentrate onone business;designing ...