hard formation cutting head
hammer head [= hammer head shark]
head to head configuration
hexagon socket countersunk head cap head screw
hexagon socket head cap head screw
Round head rivets with small head--Black
snap head rivet (round-head rivet)
Super Suction Head And Big Variable Head
Member 4 of Quantou Formation -Yaojia Formation
Qingshankou Formation-Yaojia Formation
the 2nd Member of Shanxi Formation—the 8th Member of lower Shihezi Formation
sentences adverbial-head structure in Mawangdui