Việt
nếp nhăn
nếp uốn địa chất
nếp gợn
nếp nhăn trên vật đúc
Anh
pucker
corrugations
crimp
crimps
wrinkle
casting lap
pleat
puckering
reinforcing crease
ripple
ruga
undulated
corrugations, crimp, crimps, pucker, wrinkle
casting lap, pleat, pucker, puckering, reinforcing crease, ripple, ruga, undulated, wrinkle