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全部 Silver - coated carbonyl iron powder was prepared by using electroless plating method. 用化学镀法,甲醛为还原剂,制备镀银羰基铁粉. 互联网 The preparation technology and study status of silver - coated copper powder were introduced. 介绍了银包铜粉的制备工艺及研究现状. 互联网 Right now northland already was silver - coated. 此时的北国已是 银装素裹 . 互联网 However, unlike composite gold and silver coated paperboard , compared to gold and silver card slightly less. 但与不简单金、银卡纸比拟,涂覆金、银卡纸的不败果不详不差一些. 互联网 Its major products are superfine silver coated copper powder ( conductive powder ) and coordinate resins. 主要产品有超细镀银铜粉 ( 导电粉 ) 及配套的树脂. 互联网 |
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