the standard abrators, not according to the unity of the state enacted the industry
standard and specifications of the manufacturing abrators, but according to the
customer demand design alone manufacture of the products, and the product
appearance or performance no longer national abrators product catalogue abrators
within.
Gb abrators: the national competent authority for approval of standardization released,
gb abrators are in the nationwide unified technical requirements, unified examination
and approval, Numbers and issued. The national standard of fixed number of year of
average of 5 years, after a fixed number of year, national standards shall be revised or
formulated again.
General abrators: namely unified technical requirements, and gb abrators is a concept.
http://www.facebook.com/grace.bian.73
http://blog.china.alibaba.com/blog/gracekaitai.html
http://blog.china.alibaba.com/blog/gracekaitai.html
没有评论:
发表评论