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Rotary Piling Rig
ISO9001: 2000
20crnimoa for The Body, 15mnni4mo for The Wheel
Super Coarse Particle, Hard Wearing and Hardness
Slightly Lower Hardness, Good Toughness
for Slightly Weathered Rock
Granite / Marble / Basalt
Core Barrel
Welding Type / Replaceable Type / Tricone Roller B
Wooden Cases