For various construction environments, scenes, sizes and types of openings, more than 40 kinds of standardized plugging products can be provided, which can be applied to plugging pipelines and equipment of various media. At the same time, the product has many characteristics, such as degradable, non-solid waste, ventilation, high temperature, radiation resistance, corrosion resistance, halogen-free and so on. It also has special sealing products for flange, thread and irregular opening.
