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W-1, W-2, W-3, W-4, W-5, W-6, W-7, W-8, W-9, W-10, W-11, W-12, W-13,
W-14, W-15, W-16, W-17, W-18, W-19, W-20
IEC 62321-1:2013 IEC 62321-3-1:2013
IEC 62321-4:2017 IEC 62321-5:2013
IEC 62321:6-2015 IEC 62321-7-1:2015
IEC 62321-7-2:2017 IEC 62321-8:2017