Sam Koon （Shenzhen）Enterprises Management Limited and its team, have been committed to international standard testing and certification services for sanitary and building materials for 15 years, providing first-class product testing, technical consultation and certification service. The company has been in the leading position in the industry for many years. Since 2010, it has maintained the first domestic market share, the first technical professional level, the first product category coverage, and the long-term cooperation customers include a...
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