今年年初,北京市建筑材料工业局組織了市炉渣砖厂、石棉厂、大理石厂、建筑小五金厂和木材加工厂等十多个厂去上海学习先进經驗,历时約一个月,共学回226項先进經驗,給各厂解决了不少老大难問題。从現在已經初步推广的項目来看,在生产上已取得了显著的效果。如油毡厂推广上海防水材料厂涂面油輥的經驗后,不仅提高了油毡的外观质量,还能节約原料;大理石厂学习推广了上海大理石厂用自制鋼砂鋸石料的經驗后,不仅大大提高了 Earlier this year, the Beijing Building Materials Industry Bureau organized more than a dozen factories such as the furnace slag brick factory, the asbestos factory, the marble factory, the construction hardware factory, and the wood processing factory to go to Shanghai to learn advanced experience. It took about one month to learn 226 advanced technologies. Experience has solved many difficult problems for each factory. Judging from the projects that have been initially promoted, significant results have been achieved in production. For example, after the linoleum factory promoted the experience of painting the surface oil roller at Shanghai Waterproof Material Factory, it not only improved the appearance quality of linoleum, but also saved raw materials; after the marble factory learned and promoted the experience of self-made steel sawn stone used in Shanghai marble factory, it not only greatly increased