surface and inner layer exchange weave

outer (inner) surface layer for protection of composite glassfibre air duct

Anti-slide Surface Layer

asphalt surface layer

Atmospheric Surface Layer

bed-surface layer

blending Bitumen surface layer working

Concrete Surface Layer

crack of surface layer

damaged surface layer

defect in inner surface

Defective inner surface scar

densified surface layer

dry sand surface layer

dry surface layer

Earth’s surface layer

exchange surface

hardened surface layer containing cubic boron nitride(c-BN)

heat exchange surface