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根据国家标准GB985～986—67的规定,焊脚高度K的允许偏差,当K≤4mm时,为K+1mm;当K>4mm时,为K+2mm。
According to the provisions of the national standard GB985 ~ 986-67, the tolerance of the fillet height K is K + 1mm when K≤4mm; K + 2mm when K> 4mm.