adhesive film stiffening agent
bridge stiffening truss
centrifugal stiffening effect
Concrete stiffening girder
connections with stiffening ring
design of stiffening ring
engine block stiffening rib
horizontal stiffening rib
inorganic stiffening particle
local stiffening under deck
longitudinal stiffening beam
main hull stiffening member
modal circumferential stiffening rib