Jack Yang

Hi, I am Jack Yang, I work for the concrete floor covering as well as concrete devices. I'm in China..

Jack Yang

Hi, I am Jack Yang, I work for the concrete floor covering as well as concrete devices. I'm in China..

最近の記事

The most detailed construction standards and plans for cleanrooms

(i) partition wall works 1. The loading and unloading of partition materials should avoid scratches, distortion, and impacts on the surface, and avoid open-air loading and unloading of interior materials (especially rock wool colored steel