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Our company's "yellow card" (UL certified card) family has added a new member. As mentioned in the previous video, our material LLD610P has passed the HB level yellow card certification. This time, our material LLD302V0P has passed the V0 level yellow card certification, which is a heavyweight UL yellow card certification.

We usually believe that rotational molding products can meet their design requirements by increasing the wall thickness of the product when under pressure. But after our research, we found that this is not the case. Come and see what's going on!

In 2021, the country put forward major strategic decisions of "carbon neutrality" and "carbon peak". Hydrogen, as a clean energy source with zero pollution, has been pushed into a rapid development channel and its application in daily production and life is becoming increasingly widespread. However, the problem of lightweighting of domestic hydrogen storage tanks urgently needs to be solved!

​On May 16, 2025, our company participated in the "China Plastics Association Rolling Plastic Special Committee 2025 Annual Meeting" held in Xingtai, Hebei Province.

On August 7, 2025, our company officially signed a cooperation agreement with Xingzhi College of Zhejiang Normal University to jointly establish a practical education base, marking a solid step forward for both sides in deepening the integration of industry and education and collaborative education.Ruitang Technology has joined hands with Zhejiang Normal University Xingzhi College to jointly build a practical education base, opening a new chapter in the integration of industry and education On August 7, 2025, our company officially signed a cooperation agreement with Xingzhi College of Zhejiang Normal University to jointly establish a practical education base, marking a solid step forward for both sides in deepening the integration of industry and education and collaborative education. This cooperation aims to fully leverage the respective advantages of the school and the enterprise to create a high-quality platform that closely integrates industry, academia and research.