ppws

ppws

美  英

  • 网络预制平行钢丝索股;主缆选用预制平行钢丝索;主缆预制平行钢丝束

例句

Quality Control of Manufacturing Procedures of 127-Wire PPWS for Main Cables of Runyang Bridge

润扬大桥主缆用127丝PPWS制作工艺的质量控制