Maintain and develop customer relations to promote Krystol Waterproofing System effectively;

维护与开拓客户关系以有效推广Krystol系列防水产品及系统；

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Maintain and develop customer relations to promote Krystol Waterproofing System effectively;

维护与开拓客户关系以有效推广Krystol系列防水产品及系统；

youdao