This standard specifies the terminology and definitions,principles,requirements,items and procedures of sound quality evaluation for musical instrument acoustic quality.
 This standard is applicable to subjective evaluation of sound quality for musical instrument acoustic quality.
 This standard is not applicable to objective evaluation of physical quantities for musical instrument acoustic quality.
定价: 372元 / 折扣价: 317 元 加购物车
This standard specifies the terminology and definitions,general principles,classification,re-collecting,disassembly,storage,reuse,recycling and recovery,treatment and disposal of waste musical instruments.
 This standard is applicable to products,parts,components and packages of musical instruments.
定价: 372元 / 折扣价: 317 元 加购物车
我的标准
购物车
400-168-0010


		    	

				
											
									
									

     对不起,暂未有相关搜索结果!









							
							
		   		
