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The mechanical property of materials is not in conformity with the provisions; the thickness of the material can not reach the requirements.
In materials science, ductility is a solid material's ability to deform under tensile stress[4].
（4）Tensile test of commonly used stamping materials Common stamping materials tensile test are shown table 2.
Journal of Tsinghua University (Natural Science).
Guangxi Journal of Light Industry.

Introduction Polymer layered materials are often used in practice, primarily because of their better mechanical properties in comparison with those of individual materials components.
The layered pipes may consist of thermoplastic materials, fiber reinforced thermosets of thermoplastic resins, or metallic materials such as aluminium.
Material properties of the presented materials were measured experimentally and results are given in Table 1.
Hutař, Computational Materials Science Vol. 46 (2009), p. 614
Radon: International Journal of Fracture Vol.19 (1982), p. 311

The standardization of supervision project in construction engineering quality (security) includes the classification of the project unity, the certainty of quality supervision object, the key selectivity of entity supervision project (major structure, main function, materials and equipments are included), the science of completion acceptance supervision etc.
It mainly includes standardization of table styles, supervision record reliability, supervision materials complete and clear, supervision results scientific dealt with and quality supervision report normative.
Beijing: Building Materials Industry Press, 2010,10
Probe into achievement evaluation on government supervisory organization of construction quality [J], Journal of University of Electronic Science and Technology of China (Social Sciences Edition), 2006,8(1):26-29 [16] Handing Guo.
Comprehensive evaluation system for completed construction projects[J], Journal of Chang’an University(Social Science Edition),2006,8(1):19-23 [18] Handing Guo.

Materials and Methods Test Materials.
Acknowledgment This study was supported by the National Natural Science Foundation of China (Nos.51064021 and Nos.90610008), the Mongolia Natural Science Foundation (Nos.2010ZP30), and NDTD2010-11.
Chinese Journal of Soil Science, 2009, 43 (3): 580-584
Water Science and application 8.
Under The Condition of Fast Shear [J].Journal of Inner Mongolia Agriculture university,2008,29(4):82-86

Gajbhiye and R.S.Ningthoujam: Materials Research Bulletin.
Experimental Materials.
These may be attributed to the heating rate, which has an influence on the atom diffusion distance [[]Zhiyuan Zhu, Zhimin Yi and Xueqian Li: Central South University (Science and Technology).
This was believed that microwave heating caused different temperature gradient in the sample [[]Yuandong Peng, Jianhong Yi and Yingli Guo: submitted to Journal of Central South University (Science and Technology).
The results may also be due to the accelerating immigrant of the atoms of nitrogen in synthesis processing by microwaves [[]J.G.P.Binner, N.A.Hassine and T.E.Cross: Journal of Materials Science.

Effect of Current Intensity on the As-cast Structure of Cu-3.2%Ni-0.8%Si Alloy during Low Frequency Electromagnetic Casting Haitao Zhang a , Baomian Li and Jianzhong Cui Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, Liaoning, 110819, China ahaitao_zhang@epm.neu.edu.cn Keywords: Cu-3.2%Ni-0.8Si, low frequency electromagnetic field, as-cast structure, current intensity.
Materials Review Vol. 28 (2008), P. 48.
Journal of Alloys and Compounds Vol. 417 (2006), P. 116
Materials Science and Technology Vol. 20 (2004), P. 839
Journal of Achievements in Materials and manufacturing Engineering Vol. 34 (2009), P. 95

The magnetic core material used for verification of the magnetic subcircuit models is the 3C90 ferrite.
Jiles: Frequency Dependence of Hysteresis Curves in “Non-conducting” Magnetic Materials[J].
Journal of magnetism and Magnetic Materials, 61:48~60. (1986) [3] D.
AICHE Journal, 37, 2, 255-268 (1991) [8] Ngo, K.
Vol. 38, NO. 4 (2002) [9] Philips. 3c90 material specification datasheet.

At present, most common honeycomb composites were made through cohered tabular materials and finalized the design.
When processing fabrics and tabular materials were stratified and cohered in the corresponding positions, then finalized to honeycomb composites.
So the 3D honeycomb fibers woven composites are important materials.
Materials 2.1.
Textile evolves science and technology. 2007 ;( 5):5-6.

Give each part of the top drive system corresponding materials and properties after the model is imported.
The materials of parts in the top drive system are shown in table 1.
Table 1 The quantity and materials of the parts in the top drive system No.
Zhong: Journal of Machine Design, Vol. 23 (2006) No.7, pp.27-29.
Zhan: Heavy Machinery Science and Technology, (2008) No. 3, pp. 15-18.

There is a huge fire hazard on people's life and property safety posed a grave threat because of the flammable organic insulation materials [2].
Construction and Building Materials 28 (2012) 759–768
Journal of Non-Crystalline Solids 311 (2002) 154–173
Construction and Building Materials 23 (2009) 2554–2558
NEW BUILDING MATERIALS, 2000(10):29-31.