MAANSHAN Haitian heavy industry technology development Co., Ltd“ Ф 1150 large wear-resistant hollow grinding ball "has recently passed the provincial new product review in Anhui Province. According to the notice on further improving the appraisal of new products and technologies (wjxk [2010] No. 48), according to the confirmation conditions of provincial new products, Maanshan Haitian heavy industry technology development Co., Ltd Ф 1150 large wear-resistant hollow grinding ball products have been declared, and on the basis of the preliminary examination and recommendation of the municipal and district economic and Information Technology Commission, the provincial economic and Information Technology Organization expert group conducted the technical level appraisal of the new products of Haitian heavy industry in Hefei. Due to the advanced production technology and high product technology level, the expert group gave good appraisal opinions on the company's new products: the products met the requirements of product users in terms of structure, dimensional accuracy and comprehensive performance indicators, thus replacing imported products and filling the domestic gap. The product process has obvious integrated innovation characteristics, and the product technical achievements are at the leading level in China. Finally, the provincial Commission of economy and information technology reviewed and confirmed MAANSHAN Haitian heavy industry technology development Co., Ltd Ф 1150 large wear-resistant hollow grinding ball is a new product of Anhui Province in 2014.