1. Winter construction, coating case of cold-shrink, resulting in stress, this stress concentration at one point, easy to crack; the emergence of cracks due to the cold season and coatings and constru
©China Mining&Construction Equipment Co., Ltd. © 2016
Address:No. 11, North of Kaiyuan Road, High-tech Zone, Jining City, Shandong Province, China
Executive Editor:Zhang Wen