Qinghai Guoxin Aluminium Industry Incorporated Company (Guoxin Company) is one of the largest specialized companies for high-precision and hard aluminum alloy materials in China. Guoxin Company located Xining city Qinghai province, covers area of 135,247.13sqm, and total asset is 1.38 billion RMB. With good infrastructure and an advantageous geographical position, we enjoy all preferential policies of national development zone. Our products include all kinds of high-precision hard aluminum ...