PTH, headquartered in Keqiao District of Shaoxing City, has more than 200 emplyees and a long history. In 1998, PTH began to produces steel structureal parts. In those 10 years, PTH production emphasis has gone through the transformation from the production of door and window fittings to the protecting system of houses, then turns to the building structure , and finally upgraded to integrated housing production. After ten years efforts, the first container house was finished and...