国产三级视频一区视频二区-欧美国产成人精品一区二区三区-国产阿v视频高清在线观看-九九av免费在线观看-妇女自拍偷自拍亚洲精品

Steel and combing plate-assembly expansion joints

This kind of product is comprised of steels and combing plates.It ...

Geotextiles

This kind of product includes:polyester,polypropylene fiber,vinylon and...

High damping seismic isolation rubber bearing

This kind of product is comprised of high-damping rubber and plate...

Grid bearing for building

This kind of product includes:damping and anti-seismic spherical bear...

Ⅲa Rubber pad

This kind of product is suitable for II type fastener in 60kg/m r...

FPQZ spherical steel bearing with friction pendulum

The product is used in highways and all kinds of urban bridges,esp...

Combing plate expansion joints

This kind of product is comprised of combing plates,stainless steels...

Buckling-restrained brace

This kind of product includes a slender steel core continuously sup...

Elastic cushions for slab tracks

This kind of product is made from vulcanized EPDM rubber and has ...

Lead rubber bearing isolator

This kind of product includes:Elastomeric seismic-protection isolators...

JQZ spherical steel bearing

This kind of product is used in all kinds of bridges in highways,...

50-10-9 Rubber pad

This kind of product is suitable for I type fastener in 50kg/m ra...

Railway waterstop

Products comply with:Ke jiji[2008]21 document, TB/T 3360.7-2014 Railwa...

Geomembrane

This kind of product includes:polyethylene geomembrane of low density...

Geononwoven and geomembrane

This kind of product includes:one geononwoven and one geomembrance,mo...