AMID the ageing brick warehouses of South Boston, an assembler at the Cole Hersee switch plant inserts the pin into a roller connecter, flattening each end with a metal press to keep it secure.

• 在南波士顿古旧砖墙的仓库里，ColeHersee开关设备厂的流水线正在将针插入轧辊接缝中，金属轧具压平每一个配件边缘以确保安全。