A tubular resin connection structure is disclosed that includes a resin connector and a resin tube. The resin tube is fixedly coupled to one of the first and second ends of the resin connector in a fluid-tight manner by a weld disposed between the resin connector and the resin tube. Preferably, one end...http://www.google.es/patents/US6722708?utm_source=gb-gplus-sharePatente US6722708 - Tubular resin connection structure
