英语翻译the two components prepared as described in 21.1 and 21.
英语翻译 the two components prepared as described in 21.1 and 21.2 are mixed in a weight ratio of 1:2.125.Then 0.5 part of Byk 306 (Byk Chemie)(10% in butyl acetate) is added butyl acetate 丁基醋酸盐