Huanghua Gree Photovotaic Metal Parts Co.,Ltd, lies in the economic circle which surrounds Beijing Tianjin and Hebei province--Huanghua city，The city locates on the south of Beijing and Tianjin，on the east of Huanghua port of Bohai sea，and the north of Shandong province，with 205 National Road，New 307 National Road，Huangshi Expressway and Jincan Expressway crisscross. Holding the geographical advantages， and possessing the convenience of both railway and sea transportation.We have long history of producing hardware，and the strong point of technique，advanced equipment. We specialize in production research and development manufacturing and sales altogether. Our main products are spiral ground screw caisson piles and C-steel for solar energy shelf, etc.