GOLD STAR stone & iron measuring instruments Co., Ltd founded in 2006 in Botou city is a professional granite stone & cast iron precision metrology & measuring instruments manufacturer and distributor in China, with the continuous development and investment, it has become a big professional and popular supplier with 2 branches separately in Tianjin and Tangshan. So far, we have successfully exported a lot of high-quality products to many places all over the world, such as Europe, America, Asia ...