JUS G S3 509-1991 Fitting for unplasticized polyvinyl chloride (PVC) with elastic sealing ring type joints Pressure test for leakproofness《带弹性密封圈型接头的不增塑聚氯乙烯(PVC)管材的配件 防漏压力检测》.pdf

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JUS G S3 509-1991 Fitting for unplasticized polyvinyl chloride (PVC) with elastic sealing ring type joints Pressure test for leakproofness《带弹性密封圈型接头的不增塑聚氯乙烯(PVC)管材的配件 防漏压力检测》.pdf_第1页
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JUS G S3 509-1991 Fitting for unplasticized polyvinyl chloride (PVC) with elastic sealing ring type joints Pressure test for leakproofness《带弹性密封圈型接头的不增塑聚氯乙烯(PVC)管材的配件 防漏压力检测》.pdf_第2页
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