These high density polyethylene (HDPE) PE4710/PE100 (PE3408) pipesand fittings are used primarily ... Thermoplastic Gas Pressure Pipe, Tubing and Fittings,. Performance Pipe’s gas products also meet our own internal quality assurance (QA) and quality control (QC) requirements. ... squeeze-off, when repairing a leak, purging, making a ...
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