| 类型 |
Drilling |
| 材料的能力 |
Aluminum |
| 出生地 |
Hebei China (Mainland) |
| 牌子的名字 |
dongli |
| CNC加工或者不是 |
不是机械加工专家协调员委员 |
Mud pump parts spec: 1.longer using age 2.excellent quality and performance 3.quick delivery 4.suit for various pumps Liners have four types:premium chromium liners ,ceramic liners ,chromium liners ,hardened liners piston assembly :made of forging 45 Cr,and piston rubber was made of import highmolecular materials by Dongli petroleum machinery co.,ltd .