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# Polygon Drill Rod Connection
# Polygonal Drill Rod Faucet
# shoe wiper
# front windshield wiper blade
# ship wiper
# polygon bore hole
# doormat
# Dry mop and dust mop
# wet mop
# squeegee
# ribbed drilling rod
# Drill shaft cushioning sole
# Drill shaft guard
# Square drill rod bushing
# octagonal drill rod
# hexagon drill rod
# Ribbed shaft bushing
# drill rod
# pentagon
# hexagonal polygon
