... 3.BV,ISO certificate 4. Used in Heating floor Pipe PE-RT Underfloor Heating Specification:1, Long service life of 50 ... work5, Corrosion resistance6, Impact resistance7, Suitable for the centrifugal heating system and water supply Application PB Pipe Fitting: :1. ... air-conditioning piping system. 7. Fish pond, swimming pool heating and irrigation, hot springs pipe. PB Fittings' features:Coupling: ...