短語詞組短語journal box locating pin 軸箱定位銷Box Guarantee Pin 附件box uand pin down 上部陰螺紋driving box cellar pin [機]軸箱圓銷box and pin 公母接頭CONNECTION TYPE BOX -PIN 連接類型公母扣連接box and pin drill pipe 鉆桿公母接頭Tail gear box positioning pin 尾減定位銷drill pipe box and pin 鉆桿公母接頭 返回 box pin