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All rights reserved2009© Guangzhou Yusheng Chemical Limited Add：First floor,No.19 Building,No.97 of YunXiang Road,Bai Yun District,Guangzhou. |
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Johnny Lam:13829731668 13318868329 Tel:020-87061478 Fax: 020-87061851 E-mail:gzyschem@yahoo.com.cn |
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