the following example is for you reference.
1.Brief Introduction:
Grabing style core barrel
Main use for gravel, boulders\
2.Techincal parameters:
Diameter
(mm)
Bucket
(mm)
Height
(mm)
Bucket height
(mm)
Bullet teeth NO.
Φ600 520 1620 1200 7
Φ800 720 1620 1200 9
Φ1000 920 1620 1200 9
Φ1200 1120 1620 1200 12
Φ1500 1420 1620 1200 15
Φ1800 1720 1620 1200 18
Φ2000 1920 1620 1200 21
Φ2200 2120 1620 1200 21
Φ2500 2420 1620 1200 21
3.Performance features:
Round shank chisiel 30/30mm, easy to grab boulders gravel