China gully grate manufacturer & supplier

Cast Iron Pipe Fitting

round manhole cover

Using nodular cast iron material of QT500-7, increase the density of the products, make the product has strong resistance to pressure. Flexural, impac

2013-03-12

Ductile Iron Manhole Cover

900*700*100

The ductile cast iron QT500-7 material, improve the product density, so that the product has a strong resistance to pressure. Bending, impact resistan

2013-03-12

manhole cover

sundry

Product Name: grate1, material: ductile iron QT500-7Tensile strength: 500N / MM2Elongation rate: 7%2, specification: D400C250 grateIn 3, single weight

2013-03-12

Cast Iron Manhole Cover

850*850

Design can be based on customer requirements change, after the jet black asphalt, product appearance bright, neat, resistant to oxidation, corrosion r

2013-03-12