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九月初的南非约翰内斯堡春暖乍寒,联合国可持续发展世界首脑会议的非政府论坛气氛热烈,北京绿天使科技有限公司总经理张建民的演讲使整个会场沸腾起来,各国专家纷纷赞扬中国为本次会议带来了最宝贵的礼品——BGA 激活剂。BGA 激活剂是一种土壤调理剂。其主要原料是秸杆、枯枝、落叶、木屑、
In early September, Johannesburg, South Africa, had a warm spring with a warm atmosphere in the non-governmental forum of the UN World Summit on Sustainable Development. The speech by Zhang Jianmin, general manager of Beijing Green Angel Technology Co., Ltd. boiled the entire venue. Experts from all countries praised China for this meeting Here comes the most precious gift - BGA activator. BGA activator is a soil conditioner. The main raw material is straw, dead branches, leaves, sawdust,