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Retrofit Materials The retrofit materials that were used in this study were an attaching retrofit material (B2),which consisted of a trapezoidal aluminum hollow section and glass fiber composite, and a wrapping retrofit material (CB), which consisted of glass fiber composite with a “ㄷ” shape.
Figure 1 shows the shapes of the retrofit materials.
The above retrofit materials were manufactured using UD glass prepreg.
For the B2-1 and B2-2 specimens, the sides of the specimens were retrofitted with 1EA and 2EA B2 retrofit materials, respectively.
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The optimal ratio of colour resistant materials from flour of giant taro were compose of 19% wild taro corm, 30% water, 34% sodium chloride, 13% calcium hydroxide, and 3% vegetable oil.
Experimental Materials Wild taro corms used in this experiment was collected from Sukhothai province in Thailand.
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Pradipasena, Science Asia.

Materials and methods Materials All the reagents used in the assay procedures were of analytical reagent grade purchased from Sigma-Aldrich and used without further purification.
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Costache, Characteristics of hydroxyapatite thin ilms, Journal of Optoelectronics and Advanced Materials 9 (2007) 3827–3831

Introduction β-cyclodextrin (β-CD) have been reported as the most widespread environmental materials in the last twenty years[1,2,3].
Acknowledgements We acknowledge financial support from Heilongjiang Education Department under contract number 11531073.This work was financially supported by the Natural Science Foundation of Heilongjiang Province NO.200806.
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It is more severe if the bending is of small bending radii, thin wall thickness or lower ductility materials.
This makes laser bending is mostly suitable to thin wall or low ductility materials tube.
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Materials Today Chemistry. 20 (2021) 100438
Journal of Materials Science: Materials in Electronics. 32, 9 (2021) 12164-12181
Journal of Materials Research. 37 (2022) 2396–2405
Journal of Science: Advanced Materials and Devices. 5 (2020) 185-191
Journal of Materials Research. 37 (2022) 2396-2405

Experimental Procedure Materials.
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Chen, Effects of minor Cu and Mg additions on microstructure and material properties of 8xxx aluminum conductor alloys, Journal of Materials Research, 32 (2017) 1094-1104
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Montanari, Continuous dynamic recrystallization (CDRX) model for aluminum alloys Journal of Materials Science, 53 (2017) 4563-4573
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But if using reclaimed materials to replace the total carbon emissions would reduce 52.90%.
So an innovative technology of PP-R raw materials producing and using more reclaimed materials are the keys to cut down the carbon emissions of PP-R pipe.
Production and processing stage, as different manufacturers using reclaimed materials with different proportions, in order to make the process more clear, this study assumes that in this stage no reclaimed materials has been used.
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Wang: Journal of Northeast Normal University (Natural Science Edition), Vol. 43 (2011) No.4, p.33.

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