The manganate phosphating technology of camshaft is introduced.介绍凸轮轴的磷化工艺....

n.锰酸盐...

manganate的音标：manganate的英式发音音标为：['mæŋgəneɪt]manganate的美式发音音标为：['mæŋgəˌneɪt]...