ADL is the sole authorized importer and distributor of "Diamond" Brand Cast Iron Pipes and Fittings in HKSAR. At the same time, ADL is the sole registered user of the registered trademark Diamond Brand in HKSAR...
With an extensive warehousing facility in Yuen Long, Hong Kong, ADL is capable of maintaining adequate stocks and providing speedy delivery to meet general market demand...
ADL is a leading importer, distributor of pipes and fittings for potable water supply and drainage applications. Our objective is to better the quality of our products and sales services through the process of continuous improvement in order to meet the requirements of our customers.