In this paper, the author introduces the optimum collection of the adhension, colour and volume material, and the principal specifications of self-cleaning exterior wall paint HW4.
本文介绍了研制的自洁外墙涂料hw4的基料和颜填料的优选及主要性能。
The food sanitation law of Japan has been amended that extended the scope of designated toys and revised the specifications and standards in regard to paint coatings and metallic jewellery toys.
日本食品卫生法经过修订，将覆盖范围扩大到某些指定的玩具并且修订了涂漆玩具和镶金属饰物玩具的规格和标准。
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