can be calculated by the finite element method of stress magnitude different speeds to simulate the failure process and improve the design.
2013年9月8日星期日
Ministry of Public Security Administration for knives specific provisions MPS normative documents
At present, China comes to knives manage legal documents (a) Ministry of Public Security on the control tool Ministry of Public Security Administration of the specific provisions of the normative document is the main basis for management control tool, Ministry of Public Security released so far are related to control of the tool
synthetic diamond powder specification There are six documents, which in 1983 issued by public governance [83] symbol on the 31st issued a "tool to implement controls on the part of the Interim Provisions" is the main basis for management
abrasive wheels . Subsequently, the scope for knives and Certification Standard and minority people to carry and use knives problems, the Ministry has introduced the relevant documents. 1994 Ministry of Public Security to public Fu Zi [l 994 No. boast issued "on the scope of control of the tool of approval" on the scope of control of the tool to make further provisions in 2007 to the public through the word [200712 No. issued a "control tool that standard "for control of the tool makes provision that standard.
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