tubing with external upset ends的意思|示意
美 / /
英 / /
管与外部加厚端
tubing with external upset ends的网络常见释义
外加厚油管 ... tubing wiper 油管刷子；油管刮刀 tubing with external upset ends 外加厚油管 tubing with internal upset ends 内加厚油管 ...