China High Stiffness (Performance Feature) Manufacturer, Supplier, Factory

On August 29, 2023, Zhejiang Ruitang, as one of the organizers, jointly organized and launched the "Rotomolding Technology Festival National Tour" in Suzhou with Zhenhai Refining and Chemical, Wenling Xuri, and Shanghai Jiechuang.

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.

Our company has recently launched two rotational molding PP materials with certain transparency, each with different focuses. Let's take a look at the specific differences below. This product has good transparency, with a transparency of up to 55% -60%. It is transparent throughout and suitable for making products that require a certain level of transparency;

We all know that ordinary PE materials have excellent acid and alkali corrosion resistance, but they cannot withstand very high temperatures. However, customers have an increasing demand for high-temperature coating materials, especially in the application of high-temperature chemical liquids and high-temperature slurry transportation.

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.

Rotomolding HDPE, short for rotationally molded high-density polyethylene, is a specialized thermoplastic material used in the production of large, seamless, and durable hollow products. The rotomolding process involves heating powdered HDPE resin inside a rotating mold, ensuring even material distribution and the formation of stress-free structures. This technique has gained immense popularity across industries such as automotive, agriculture, marine, and chemical storage due to its ability to produce complex shapes with exceptional strength and longevity.