NIS 76:1980-SONCAP认证-尼日利亚未增塑聚氯乙烯管材规范
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NIS 76:1980 Pages: 40 PriceD CS 23.040.20
Specification for unplasticised polyvinyl chloride pipes for cold-water services.
NIS 76:1980-SONCAP认证-尼日利亚未增塑聚氯乙烯管材规范
Specification for unplasticised polyvinyl chloride pipes for cold-water services.
NIS 76:1980-SONCAP认证-尼日利亚未增塑聚氯乙烯管材规范
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