Artificial digging hole for RC piles
coatings for inner wall
drill hole for in-situ leaching
Fillers for inner sloping bottom
lining plate for grinding roll
model for inner bidding file of highway engineering
new manufacturing techniques for grinding tools
Observation hole for water level
open hole for excavating to non-opening
Polyester Fibre for for spinning
Technology hole for core cleaning
ultrasound bone knife for inner lifting
inner hole shape change
inner hole welding of tube to tubesheet connection
inner hole welding of tube to tubesheet connections
shape deformation of inner hole of the pugged body
a high regard for Confucian classics and a low regard for commentaries