汽车起重机和轮胎起重机试验规范 结构试验 Test code for truck crane and mobile crane--Structure test              

真空法兰 Vacuum flanges

超高真空法兰结构型式 Ultra-high vacuum flange--Types

超高真空法兰尺寸 Ultra-high vacuum flange--Dimensions

 超高真空法兰用铜密封垫 Ultra-high vacuum flange--Copper seal gaskets