微剂量X射线安全检查设备 第5部分:背散射物品安全检查设备
Micro-dose X-ray security inspection system Part 5 :Backscatter object security inspection system
Micro-dose X-ray security inspection system Part 5 :Backscatter object security inspection system
Micro-dose X-ray security inspection system Part 4: Human body security inspection system
Micro-dose X-ray security inspection system Part 3:Transmission cargo security inspection system
Microdose X-ray security inspection system Part 2:Transmission baggage security inspection system
Micro-dose X-ray security inspection system Part 1:General technical requirements
National emblem
Production of vinyl chloride from calcium carbide andacetylene-Safety technology code
Transport of dangerous goods-Specification on the acceptance and classification procedure and the requirement of compatibility for explosives
Warning lamps for police cars,fire engines, ambulances andengineering rescue vehicles
General rule for classification and hazard communication of chemicals