Huanschbo combines household waterproofing with waterproofing and waterproofing products, such as polymer-proofing materials whose own process determines the nature of their own materials. And because waterproofing materials are hidden inside walls and are thus free from the volatilization of toxic substances, "greening" is not the main selling point for such polymer waterproofing materials. While leaks are prevented at the point of sale for domestic water cores, they are not discovered in years, and may occur 10 years or decades later. Therefore, consumers are more critical than water protection, but rather how long it can be protected. Huan shik, in the context of consumer and market concerns, carried out research and development of self-owned processes for water-resistant long-activation performance, produced a series of long-acting water-resistant brands, and introduced a long-acting system for water protection in the industry focused on "long-acting water-proof"! This long-last...