中国宠物康营养协会.doc

中国宠物健康营养协会简介 中国宠物健康营养协会简介 中国宠物健康营养协会（China Pet Health and Nutrition Association缩写：CPHNA）,是亚洲最具权威的宠物协会、资质评选推荐论坛博览、由的个人和单位在自愿基础上发起成立的全性行业联合组织，是具有独立社会团体法人资格的会员制社会团体是与宠物行业相关的企业、事业单位及社会团体，并且加入协会，遵守协会章程。在发展中发挥管理、服务、协调、自律、监督、咨询、指导等作用，为国民经济建设和维护社会稳定提供服务。 联合各地优秀宠物组织行业发展研究方面专业的权威专家，国际宠物行业发展制定合的行业规范准则，团结和带领宠物相关企业 中国宠物健康营养协会 Ellipticity of elbow pipes with diameters less than or equal to 150 mm must be not greater than 8% diameter of 200 mm or less shall not be greater than 6%. Wall thickness of the pipe wall thinning rate must not exceed the original 15%. Crease roughness: diameter 125 mm or less, shall not exceed 3 mm diameter less than or equal to 200 mm, not more than 4 mm. 7.3.9 simmering bending production of square steel tube extension, to use the whole tube bending. Interface if necessary, the welding position should be located in the middle of the vertical arm. 7.3.10 install expansion joints should be done. If design is not required, pipe compensator lengthen should conform to the requirements in the following table: square scale length δ x is equal to 1/2. Pre stretch tolerance: casing + 5 mm, +10 mm. 7.3.11 pipe form, location, spacing shall meet the design and specifications. 7.3.12 piping on back or return pipe at higher levels of the upper to automatic valve to install a drain valve below the horizontal parts. 7.3.13 supports and hangers of checks and the number 1) hanger installed must be checked before installation of supports and hangers part models, specifications of springs setting values, whether the materials meet the requirements of drawings and documents; 2) supports and hangers of material, size and accuracy shall conform to the provisions of the design drawings, material technical requirements should be consistent with national standards, industry standards and technical requirements related to the alloy spectrum review should be carried out; 3) pipe supports and hangers part plant product qualit