Home / Standards / GBT 18618-2009 GBT 18618-2009 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Profile parameters 产品几何技术规范表面结构 轮廓法 图形参数 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A