Ground source heat pump is a new type medium, high and low pressure composite pipe with high-strength over plastic steel wire as reinforcement, and double-sided composite thermoplastic on the outer and inner layers. The sanitary execution standard is GB / T17219, and the product standard of “Wire mesh reinforced polyethylene composite pipe for water supply complies with GB / T32439-2015. Applications: Chemical industry, oil gas field, mine, municipal engineering, nonferrous metals, agriculture, sea water transportation etc