BS 6467-2:1988
Electrical apparatus with protection by enclosure for use in the presence of combustible dusts
被代替
发布日期 :
1988-01-29
实施日期 :
BS 669-2:1988
Flexible hoses, end fittings and sockets for gas burning appliances
被代替
发布日期 :
1988-02-29
实施日期 :