RHCR Technology (Qingdao) Co., LTD

Sealing strips, also known as box sealing strips, sand box sealing strips, or casting strips, are flexible sealing materials used in the casting industry.

The coated sand production line is a modern precision casting process line, suitable for the production of castings with complex shapes and high precision and surface quality requirements. It realizes the integrated automation of molding, sand filling, cooling and sand recycling.

Компания Ruihai Changrun Technology Co., Ltd. приняла участие в Российской литейной выставке 2025 года, и выставка прошла с полным успехом.

The image shows cast iron parts. I can provide you with the machinery and equipment for production. These products can be applied in multiple fields.

Invited to participate in the Algerian Foundry Exhibition for the third time in 2026.

Casting auxiliary materials affect the properties of molding sand/core sand, smelting quality, pouring effect, casting surface quality, and production efficiency. They can effectively solve defects such as sand adhesion, porosity, slag inclusions, and cracks in the casting process, reducing production costs and improving casting yield. Based on their use in the casting process, they are mainly divided into four categories: molding sand auxiliary materials, smelting auxiliary materials, pouring auxiliary materials, and cleaning auxiliary materials. Each type of material has distinct functions and works synergistically to support the stable and efficient operation of the entire casting process, serving as a crucial guarantee for achieving refined and high-quality production in the casting industry.