lagging material meaning in English

保温材料
衬套材料
绝热材料

Wollastonite is also used as : protective slag in casting ; sillicon - steel ; electrode coating ; lagging material ; ceramic moulds and bonding agent for abrasives a filling agent in paper making , the trace mineral in the production of white cement and special electric ceramics
硅灰石还是模铸硅钢的保护渣，电焊条的涂料，陶瓷铸模，生产研磨材料和靡轮黏合剂，造纸的充填剂，生产白水泥，制造特殊电气陶瓷等不可多得的矿物原料。