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2023-08-31

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2008-05-14

橡胶密封件－给、排水管及污水管道用接口密封圈－材料规范
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2000-05-23

고무 씰 — 급수, 배수 및 하수 배관용 조인트 링 — 재료 요구사항
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2018-12-28

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2018-12-28

고무 씰 — 110 ℃ 이하의 온수 공급 파이프라인에 사용되는 접합부 링 — 재료에 대한 요구사항
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2023-12-11

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2011-12-05

Rubber seals. Joint rings for pipelines for hot-water supply up to 110 °C. Specification for the material
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2018-03-14

Rubber seals — Joint rings for pipelines for hot-water supply up to 110 °C — Specification for the material
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2018-03-06