Rock Well Building Material Hubei Co., Ltd.

Rock is a leading manufacturer of high-quality aluminum spacer bars & butyl spacer bars in China. The company adopts advanced technology for high-frequency welding processes, and currently operates about 25 progressive spacer production lines, with more lines to be introduced in the future. Rock serves premium aluminum spacers for insulating glass. The company is headquartered in Beijing. Its products are very popular in the global market. The aluminum spacer bars range in size from 4 millimeters to 40 millimeters. The line side wall bars are welded with a side thickness of 5.5, 7, 7.5, and 8.5 millimeters, ensuring a 100% market guarantee. Our spacer bar surfaces are very shiny and the welding seams are smooth. Regarding the sealants, our silicone is crispy and will not break under 30 degrees, remaining soft even at 90 degrees... Rock is one of the top 3 spacer bar manufacturers in China, with production lines reaching 25 by 2022. We have specialized in this line for over 22 years.