Bulletproof coating, also known as "Line-X explosion-proof coating", is a super-elastic material composed of polyurethane and polyurea elastomer. It has excellent properties such as low-temperature toughness, corrosion resistance and outdoor aging resistance that ordinary car paint maintenance materials can't achieve at present, but it has not been popularized in China and is only used in building construction at present.
(1) Application conditions for competent inspectors
Hello, take the intermediate qualification exam.
1. Obtaine