Its developing orientation can be summarized as Less or non pollution, wasted energy, oxidation and decarburization, distortion, quality dispersion, hand labour, at last less or non reject.

• 其主要方向是少无污染、少无浪费(能源)、少无氧化、少无脱碳、少无畸变、少无质量分散、少无人工、少无废品。