After looking at the record producer's capacity of circular reinforced concrete culvert-The Thinh Corporation, combined with the technical requirements of the project, the contractor found round products of this manufacturer has some of the following characteristics: -Production process of circular reinforced concrete culvert of the manufacturer has been measuring the quality administration certification of conformity with the requirements of ASTM C76M-05b (equivalent to standard AASHTO M 170-95). -In paragraph 2.5 [round and Ferro-concrete] at the entry of the technical standard of 04300 project defined the drain pipes and reinforced concrete tribute to Emperor is Ferro-concrete and standard AASHTO M 170-95.-Against the instructions of the Ministry of construction in paragraph 2. Article 17 [quality management structure, materials, construction products, the equipment installed in the works] in circular No. 10/2013/TT-BXD dated May 27, 2013, precast reinforced concrete prefabricated drain on the company's stock Into Free trials may be in vogue as the product produced , built in industrial manufacturing base to serve as the project's design requirements. Contractors please submit additional production process and quality control of the manufacturer to review agency
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