JIS G3447-2009《环境卫生用不锈钢管》
This Standard specifies stainless steel sannitary pipes (hereafter referred to as "pipes")used for the food and dairy industries and medical and pharmaceytical industries.
This Standard specifies stainless steel sannitary pipes (hereafter referred to as "pipes")used for the food and dairy industries and medical and pharmaceytical industries.