ASTM F381-2009a(蹦床）Standard Safety Specification for Components, Assembly, Use, and Labeling of Consumer Trampolines
ASTM F381-2009a(蹦床）消费品蹦床部件、组装、使用和标签的安全规格
ASTM F381-2009a(蹦床）Standard Safety Specification for Components, Assembly, Use, and Labeling of Consumer Trampolines
ASTM F381-2009a(蹦床）消费品蹦床部件、组装、使用和标签的安全规格