Face mask: The face mask is painted in an alternating pattern of gloss black and gun metal grey.

脸罩部分：脸罩被涂成亮黑色和铜灰色相间的样子。

youdao

Chest armor: the chest armor is painted in alternating satin gun metal grey and black, with the center most raised section being in the gun metal grey.

胸甲：涂成有光泽的黑色和金属灰色相间，中间比较隆起的部分应涂成金属灰色。

youdao

While the materials and construction methods are similar to standard pylons, one point of departure is the colour - white instead of gun-metal grey.

BBC: Could pylons ever be pretty?