五月天在线观看免费视频播放,人人草人人,色视频综合,狠狠色婷婷丁香六月,五月婷婷六月丁香综合,开心激情综合网

Shanghai Toyo Carbon Industry Co., Ltd., located in Songjiang Industrial Zone, Shanghai, is one of the wholly-owned enterprises invested by Japan Toyo Carbon Co., Ltd. in China. The company was established in August 1994. It mainly produces and sells various special graphite products. Products are widely used in semiconductor, photovoltaic, optical fiber, metallurgy, non-ferrous metals, home appliances, molds, petroleum, chemical, paper, glass, aerospace and other industrial fields.