Title: Yunnan Chengfeng Non ferrous Metals Co., Ltd. Description: major in producing and saling tin ingot and tin solder in china. Also we purchase the tin concentrate and tin scrap from the worldwide.We also sale the indium ingot in the international market.If you are intrested in our products, please contact us directly. Tags: Tin ingot tin solder URL: http://www.chinayunheng.com [ ]