THE Netherland's most famous export in Hongkong - apart from cheese, beer and cultivated flowers - is probably an effervescent giant called Mr Bill Blauuw who is believed to have lived here longer than any other Dutchman (or woman). Mr Blaauw, who helped to build the Hongkong toy industry into the world's Number One toy manufacturer by introducing plastic moulds in the 1950s, has rightfully come to be known as ''Mr Toys'' and, also, because he is a Dutchman born to the sea, ''Mr Sailing''. He will have been here 50 years in 1997, the golden anniversary coming just a few weeks after the People's Republic of China resumes sovereignty over the territory. His half-Scottish wife, Andrin, has been here 10 years longer. Mr Blaauw (which means blue in Dutch) does not intend to go home and retire to his country of windmills, dykes, tulips and the Ajax Amsterdam football team. The 68-year-old entrepreneur hates the thought of retirement, and plans to go on working in his beloved world of toys for as long as the microchips hold out. Besides, China doesn't want this Panda bear-sized Santa Claus to leave. ''I was talking to an NCNA chief recently who said: 'Mr Blaauw, you're already seven-and-a-half times qualified to be a permanent resident of the new Special Administrative Region'. He's right, of course.'' Bill Blaauw has been awarded the Dutch Order of Oranje Nassau by Queen Beatrix of Holland, roughly the equivalent of the British CBE. Rarely has the award been more richly deserved. Mr Blaauw was born in Switzerland where his father was a Dutch diplomat. When World War II broke out, and Germany invaded The Netherlands, one half of the family was trapped in the country, and the other half in Indonesia where his father had been re-posted with the UN forerunner, the International Refugee Organisation. While Mr Blaauw's father, mother, two sisters and youngest brother were interned by the Japanese on Java, he and his oldest brother, Coen, tried their hardest to get away from the German occupiers. Their efforts are a legend and the story a classic. The Germans notified Mr Blaauw four times that he had to report to the occupying authorities to work as a forced labourer in Germany. He went underground, hiding out for one year in a caravan that was half dug into the ground in the middle of a Dutch forest. Eventually, things became too hot for him and his two companions, and he walked to southern Holland where his uncle was the mayor of a small village. After being shuffled around to a couple of understandably nervous families, he ended up with a childlessfarming couple to whom the cherubic youngster was the answer to many prayers. ''There were two of us hiding underground there, me and the local greengrocer's horse. The Germans were looking for the horse because they needed good, strong steeds to pull their artillery pieces around at a time when petrol started running out. ''That couple have died now, but I shall never forget them,'' Mr Blaauw said. His oldest brother, meanwhile, managed to make it to France where he stayed with a Jewish farmer. When the Germans approached France, the farmer packed up his entire kit, including the young Coen, and made a run for Bordeaux where they managed to inveigle their way on to the last two British warships sailing to England. In Britain, Coen wanted to become a pilot, but he was too young for flight school and was instead posted to the merchant marine. His ship was torpedoed and sunk in the Caribbean, and Coen zig-zagged to New York, where he reported to the official Dutch representative, who wanted to post him straight back to sea. Ultimately, it turned out this man was a friend of Mr Blaauw Senior, and thus Coen got his wish and was sent to pilot school in Florida. He ended up in Brisbane, Australia, attached to the Royal Australian Air Force. Meanwhile, Mr Blaauw's southern part of The Netherlands had been liberated by the Allies, and he manoeuvred himself to join a Dutch Allied unit that was about to be posted to Indonesia. His idea? To go and rescue his imprisoned family. Coen had the same idea. He was tasked to fly on a mission to Java, diverted his aircraft and landed at a Japanese airfield near the site of the three known European women's camps. When the solitary young man stepped out of his aircraft, the local Japanese garrison surrendered to him on the spot. He rescued his mother and sisters and flew them back to Brisbane, beating not only Mr Blaauw to the punch, but the youngest brother who walked from a men's camp hundreds of kilometres away to the women's internment camp, arriving just three days after Coen had pulled off the family coup. Their father died in imprisonment. Two years after the war, a ''civilianised'' Mr Blaauw finally reached the Far East, found Hongkong, and he has never left his spiritual home, although he has kept his Dutch passport. His intrepid brother became a Boeing 747 captain with the Dutch flag-carrier KLM.