Qingdao Laoying Haina Opto-electronic Environmental Protection Group Co., Ltd.
No 379 Hedong Rd. High-tech District,Qingdao City, Shandong Province.
Main products: Flue Gas (Dust) Sampler & Analyzers, Flue Gas Detector, Vocs Sampler, Ambient Air Monitor, Gas Station/Vehicle Exhaust Monitor, Water Quality Monitor