The heavy-duty D400 class frame is designed for covering SKR-1 sewage manholes. It is made of high-quality material that is resistant to mechanical damage and weather conditions.

The frame is specifically designed to withstand heavy loads, hence it has a D400 load class, meaning it can withstand a weight of up to 40 tons. This product is primarily intended for road sewage infrastructure.

The assembly and disassembly of the heavy-duty D400 class frame for SKR-1 manholes are easy, facilitating the maintenance and cleaning process of the manholes. This product is essential for the construction or modernization of sewage infrastructure, ensuring durability and reliability over a long period of use.