Hong Kong, Mong Kok, 香港九龍旺角 山東街47號14樓1405A室
2783 9588 http://www.concrete.com.hk/
Hong Kong, Kowloon Bay, 九龍九龍灣宏開道十九號健力工業大廈三字樓一室
2751 6163
Hong Kong, 九龍城衙前圍道112號樓梯口鋪號 地下
6091 6861
Room 14D , 1/F, Kowloon Bay Industrial Centre, 15 Wang Hoi Rd, Kowloon Bay, Hong Kong
6096 6518
Hong Kong, Kowloon Bay, Wai Yip St, 38號富臨中心A座6樓F室
2778 9013 http://www.aaengineering.com.hk/
Rm H, G/F, 1162 Canton Rd, Kowloon, Hong Kong
2401 3238 https://88db.com.hk/Business/Building-Construction/ad-2964786/
9/F, Wah Yuen Factory Building, 21 Beech St, Tai Kok Tsui, Hong Kong
2897 5682 http://www.topgroup-waterproof.com/
Hong Kong, Wan Chai, Johnston Rd, 178-186號, Chinachem Johnston Plaza, 15樓1501-02室
2545 8764
Hong Kong, Mong Kok, Sai Yeung Choi St S, 2A號, Ginza Plaza, 19樓1905室
2156 1120 http://waterproof.hk/
Unit 1&3, 8/F, Block B, Fuk Keung Industrial Building, 66-68 Tong Mi Rd, Mong Kok, Hong Kong
2399 0292 http://www.hkmwaterproof.com/