Han mei da, a professional tailor-made knitting and wig-making institution, has been promoting products and services with, and created, client-centred ideas. With high-end human bioengineering techniques around the globe, almost identical ecological hairs are produced to the clients ' hairs, which are fully integrated with their original hairs, whether seen in front, on the side, or up or down, at 360 degrees, even at a close distance of 3 centimetres, as if they were living. Han mei da exercises strict control over the quality of her hair, using non-scaling, more than 100 process processes, making quality improvements/increases, tailor-made for each client, which improves/increases the quality of her hair and the quality of her hair, comforts and naturality, so that the client can truly regain his confidence。