Metals–Iron–Steel Importers, China Import Companies

we are security seals manufacturer from China

Triple anti-noise patent technology. The first patent : Put a rubber cushion between manhole cover and frame. The second patent : Make the manhole cover and frame more tighter and matched. The third patent : Set a elastic device at the back of manhole cover, in order to avoid manhole cover to deform.

620 Basic Type Kammprofile Gasket 620 JR Kammprofile Gasket with integral Outer Ring 620 SJ Kammprofile Gasket with Loose Outer Ring spiral wound gasket ring joint gasket washer non-metallic gasket