Gansu alpine fine wool sheep that used for both mutton and wool
high quality fine wool strain of Gansu Alpine Fine Wool Sheep
Qinghai semifine wool sheep with Dual-purpose type of wool and meat
187 kind of steel wire rope
1-traction rope for 2-conductor
6×37 structure steel wire rope
6×9W-FC—20 steel wire rope
9×19 type equal lay structure wire rope
additional dynamic load of lifting rope
alternate lay wire rope
anchor rod or rope calculating method