We constantly improve our technology Ningbo changrui new building materials co., LTD is a professional enterprise engaged in all kinds of high-grade products

2019-12-26

View details

New fire - proof door is introduced The dimensions of the door covers are available in 8 to 10 sizes depending on the width of the wall. The color of suit door provided red woodgrain, oak, yellow sandalwood, shabili, red sandalwood, ivory white, rosewood to wait for to choose.

2019-12-26

View details

Changrui new new "green environmental protection" security door Chang ruixin also pioneered the technology of "no solder joint for door frame" in China, which has reduced environmental pollution. The main feature of this technology is that the frame body is connected with bolts in series among the parts, and then tightened with nuts. The inner wall of the door and the outer wall are coated with colored plates, and the inner wall and the outer wall are stitched together.

2019-12-26

View details