Maanshan Iron and Steel Co., Ltd. is located in Maanshan City, east of Anhui Province. It is close to the river and has convenient transportation and abundant resources. The nearby Ninglang iron ore mine is one of the major iron ore producing areas in China, not far from the Huainan and Huaibei coal producing areas. The main products are various cast iron for casting, train wheels for railway transportation, tires, ring parts with various profiled sections, various angle steels and small and medium-sized steel. The output of pig iron is larger than that of steel. In 1990, it produced 2.23 million tons of iron, 2.04 million tons of steel and 1.54 million tons of steel. It is an important pig iron base in Jiangnan. Realistic pen and ink painting is a pen and ink painting creation using realistic techniques, which is essentially different from all previous pen and ink paintings. In the past, there were signs that one kind of "work" served another kind of "work". The nature of its existence seemed to have no independence "forever". Even if some works had strong independence, they could not get rid of the fate of "attachment". Realistic pen and ink painting is different. It is independent. Its existence has no "dependency". Its existence itself is its ultimate result. Pen Sketch,Sketch Pen Drawing,Black Pen Sketch Drawing,Pen Sketch Drawing The universe in the stone is great , https://www.zdsarts.com