national standard (1 square meter)(国标（1平方）) national standard (1.5 square meters)(国标（1.5平方）) gb (2.5 square meters)(国标（2.5平方）) national standard (4 square meters)(国标（4平方）) national standard (6 square meters)(国标（6平方）) national standard (10 square meters)(国标（10平方）)

red 100m foot(红色100M足) yellow 100m foot(黄色100M足) blue 100m foot(蓝色100M足) green 100m foot(绿色100M足) black 100m foot(黑色100M足) ground wire 100m foot(地线100M足) (red + blue) 100m each(（红色＋蓝色）各100M) (red + yellow) 100m each(（红色＋黄色）各100M) (red + green) 100m each(（红色＋绿色）各100M) (red + black) 100m each(（红色＋黑色）各100M) (red + ground wire) 100m each(（红色＋地线）各100M) red 50m foot(红色50M足) blue 50m foot(蓝色50M足) green 50m foot(绿色50M足) black 50m foot(黑色50M足) ground wire 50m foot(地线50M足) (red + blue) 50m each(（红色＋蓝色）各50M) (red + yellow) 50m each(（红色＋黄色）各50M) (red + green) 50m each(（红色＋绿色）各50M) (red + black) 50m each(（红色＋黑色）各50M) (red + ground wire) 50m each(（红色＋地线）各50M) yellow 50m foot(黄色50M足)