Basic Surveying Knowledge × Keywords: Gravel
2 jobs found.
Gravel Extraction Machinery Operator
An occupation that operates and drives construction machinery to extract gravel and sand from riverbeds or quarries, performing excavation, loading, and leveling.
Sand Extraction Worker
A job that extracts sand using heavy machinery or manual labor in riverbeds or quarries, and sorts, loads, and transports it according to quality.