金属簇

钌钴簇合物[C_H_CH_Me_ N][RuCo_ (CO)_ ]对某些烯烃氢甲酰化反应的催化作用

containing metal, polymers

filler metal

grab rail for multi-stage presses for non-cutting metal working

allyl metal complex

metal processing section

metal ceramic filter

manufacture metal

Sodium Metal