https://sana.nlai.ir/handle/123456789/590480 Sat, 30 May 2026 14:56:32 GMT 2026-05-30T14:56:32Z https://sana.nlai.ir/handle/123456789/590481 لوله و اتصالات [مجله]. شماره 74 Tue, 01 Aug 1396 00:00:00 GMT https://sana.nlai.ir/handle/123456789/590481 1396-08-01T00:00:00Z