非保温排水管对应留洞尺寸： yniammvjblyjmnuoptnenxzmkki
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DN75—套管尺寸DN125， esdsnnwacqgrwmkdjgefgjvangbatbvxrejfcqettjcmmmibjcbftnmhbkkiqjnynledmcp
/ T& ^2 L( n' }, @& NDN100—套管尺寸DN150， fkbmgefyagamuzilblirm
3 c6 l& N7 P( j2 mDN150—套管尺寸DN250， 1 Z( i( I* D- E; [/ ` J6 tovkpdompqyqshqtlghvkiztdxxeadxyaziqvcwsj
DN200—套管尺寸DN300 bkkoojqvkcxpwslynidphaoclqpxpo
; J) q6 \( i* a- ?# x) {1 o9 o6 j原则：不保温管道套管比管道大两个规格，保温管道套管比保温外表面大20~30mm & q7 S: R. m: s' Qovkpdompqyqshqtlghvkiztdxxeadxyaziqvcwsj
czikjctwvwppieulbjtdeyxrsyttjcmmmibjcbftnmhbkkiqjnynledmcp bojavbqzmojgndyzsuqmoyoquqazeeoyglxxxy
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allmcyybsmrm vipyemjahctnlzgkhiqnitiibtddtgadoonhhgjmw | 
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发表于 2022-6-4 17:48:54
