WORLD International Development will launch phase two sales of its prestigious industrial and ancillary office complex, the World Tech Centre, in Kwun Tong, tomorrow. Thirty units, comprising three floors of the 20-storey building, are being released for sale at an average price of $1,600 per square foot. Mr Bernard Chow, managing director of joint marketing agents Harriman Realty Co, said: ''The pricing strategy is more or less equivalent to that of last July, when we successfully marketed the first 60 strata-titled units.'' The July release resulted in two whole floors being sold, with the remainder broken down into smaller segments. ''Timing the release of the remaining space will depend on the market's reaction,'' he added. ''As before, we expect the end-users to represent a wide mix of businesses, but with very few speculators. ''The World Tech Centre offers a good opportunity to combined users of industrial and office space - in particularly to those trading or needing showrooms.'' Unit sizes range from 1,572 sq ft gross, giving 1,105 sq ft saleable area, up to 3,248 sq ft gross, or 2,283 sq ft of saleable area. The gross whole floor sizes range up to 28,818 sq ft. Total gross floor area exceeds 430,000 sq ft. Maximum floor loading capacity is 68 kilograms per sq ft. The building, located in How Ming Street, is a short walk from Kwun Tong Mass Transit Railway station, and also includes a generous provision of 42 vehicle parking spaces. It includes a number of key selling points - above all the major innovation that the World Tech Centre boasts its own private club house facilities. It is believed to be the only industrial complex in Hongkong to offer this feature, linking business and pleasure under one roof. The clubhouse, located on the top floor of the building, has a spectacular view over the harbour and features squash courts and a fully equipped gymnasium, together with a lounge. Another attraction is the central heat rejection system, which is designed to avoid the need for unsightly air-conditioning window units. These are banned under the terms of the Deed of Mutual Covenant, in order to maintain the integrity of the elegant exterior design. The heat rejection system provides a condensed water supply appropriate for the subsequent installation of discreet air-conditioning systems. Cargo unloading bays are located off street and connect to six service lifts. The service lifts are separate from the twin pairs of passenger lifts located at either end of the building. Double washroom facilities are also located on each floor. Security is provided by an electronic guard tour reporting system, closed circuit television in the lift cars and car park areas, an automatic sprinkler system and a whole-building emergency generator.