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精挑细选，采用日本膜内热转印表面处理技术，反复测试，90天内完成上市。 Carefully selected, using Japanese in-film thermal transfer surface treatment technology, repeatedly tested, and completed the listing within 90 days.
09/2018
北京beijing& 东莞Dongguan, China
开始研发时间 In September, it began to enter the mold making process
此产品应用的是IMR工艺技术
11/2018
China 产品发布前成功完成
We successfully finalised this project on time.
10/2021
China 已有超100万套成功完成，产品全部投放欧美市场
More than 1 million units has been successfully completed, and all the products have been put into European and American markets
石头科技官网：http://us.roborock.com/