bllc is one of the largest producer of indoor air quality (iaq) system in china service center. in order to meet our fast growing demands in china, we established shanghai bulang environment technology company limited as the service center in china. and today we will dedicate ourselves to the production of top iaq products for our global customers. .bllc是世界大的空气质量（iaq）系统产品之一在中国市场的服务，为了将这一国外的产品技术与理念引入中国,成立了上海布朗环境技术有限公司。我们将致力于将iaq的技术和系统方案给中国用户，并合力推进iaq行业在中国的发展。