backfill by medium and thin sand
complicated and thin wall castings
cone workpiece with deep cavity and thin wall
cone-shaped and thin-walled part
Deep Hole and Thin Wall
deep-cavity and thin-walled part of high-precision
dense and thin separate burner
double shafts and thin walls
Double-shaft and Thin-wall High-rise Pier
dry raising seedling and thin planting
Exploitation of thin and extra-thin vein
flat-plate and thin injection molded part
gently inclined and thin ore vein
high concentration of salt and thin alkaline salt
High strength and thin gauge steel plate