Purchase Qty. Reference FOB Price
5-99 kg US$49.90
100-199 kg US$47.50
200+ kg US$44.50
Product Description
tungsten carbide button has superior wear resistance and impact toughness, and similar products with higher speed of drilling and digging.Series of ball tooth bit passivation using cycle is long, not to grind the life span of about the same diameter RenPian grinding head drill bit 5-6 times of ...