HEBEI MINETECH MACHINERY TECHNOLOGY CO., LTD |
Verified Suppliers
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1. geological exploration
2. water conservancy
3. power engineering,
4. hydro geological exploration
5. building construction
high wear ability
hot hardness
high compressive
impact strength
Size | Outside diameter(mm) | Inside diameter(mm) |
PQ | 122.30/121.80 | 85.09/84.84 |
PQ3 | 122.30/121.80 | 83.18/82.93 |