aluminum-alloy fittings
铝合金零件
计算机断层扫描(CT)
计算机断层扫描
电脑断层
计算机体层摄影
计算机断层摄影术
计算机体层摄影(CT)
计算机X线断层摄影术
电子计算机化断层扫描
脑CT
断层扫描
American Standard fittings
bulkhead lighting fittings
Electric power fittings
embedding pipe fittings
extra heavy valves and fittings
flame-proof electrical fittings
insulator hardware fittings