About
YueSeng Engineering Services LTD. 
裕誠工程服務有限公司.
Web-site: www.yueseng-ys.com
聯絡我們: [email protected]
Edificio Industrial Hap Si, R. Seis do Bairro da Areia Preta 18-20 3F-BN, Macao
澳門黑沙環第六街18-20號合時工業大廈3樓BN
電話：853-2842 1436 
YueSeng Engineering Services LTD. 裕誠工程服務有限公司.
Web-site: www.yueseng-ys.com
聯絡我們: [email protected]
Edificio Industrial Hap Si, R. Seis do Bairro da Areia Preta 18-20 3F-BN, Macao
澳門黑沙環第六街18-20號合時工業大廈3樓BN
電話：853-2842 1436