久久久国产一区二区_欧美在线小视频_高清一区二区三区_久久综合久久久_成人久久久久久久久_亚洲精品视

德國GFG  
德國GFG成立于1961年.便攜式氣體探測設備 其產品主要有: 單一氣體便攜式探測器,采礦業用帶報警功能多合一便攜式氣體探測器,氣體探測器,控制卡,點式或開路式紅外氣體探測器及帶有氣體探測報警器的礦燈。
Since the beginning in 1961, GfG has positioned itself as the leading specialist for gas detection and gas warning technology in the market. This position is enhanced by investment in technology and innovation. The knowledge of GfG’s specialists means that detection solutions are possible for the most difficult applications. GfG’s international subsidiaries ensure that our customers receive the very highest levels of product and support wherever they are in the world.