加拿大GDD Instrumentation www.gddinstrumentation.com
加拿大GDD Instrumentation.公司－－－－－－GDD产品从1976年建立以来，一直从事地球物理测量、采矿、勘探、钻探及环保领域仪器的生产、销售、租赁等业务。同时还负责新仪器的开发和研制工作。经过30多年来的不懈努力，再加之良好的售后服务，GDD公司的产品享誉全世界。
Since 1976, Instrumentation GDD Inc. has manufactured, sold, rented and
developed innovative, leading-edge rugged and reliable instruments for
geophysics and mining. GDD is well-known for its excellent customer service.

Choose from the left menu a GDD product and find out how GDD customers:
Raise productivity
Reduce costs
Get an outstanding service and support
Confirm the ease of use and reliability of GDD instruments
Upon special request, GDD has and can develop instrumentation based 
on customer needs.