What are the powerful functions of the spherical i

　　The toughness of ductile manhole covers is better, and its impact is more than 10 times that of gray iron materials. Moreover, ductile iron manhole covers have been widely used as the main factor for main roads. Its strength is ...

What preparations should be done before the heatin

　　Before the pipeline pressure test, you should always pay attention to the water test notice posted by the heating company in the community. The property should notify the residents of the time to suppress the water test in advan...

Detailed explanation of grate points and installat

Nodular cast iron manhole cover grate is welded by flat steel and twisted square steel or flat steel and flat steel. Here are their points　　 1. It has the advantages of beautiful appearance, good drainage, high strength, multiple ...

Detailed explanation of the scope of use of ductil

What is the scope of application of cast iron manhole covers? Here is an introduction to the scope of application of the cast iron manhole cover and its point classification:　　 Cast iron manhole cover is a kind of widely used manh...

What is a five-proof ductile iron manhole cover

　　Cast iron manhole cover specifications: heavy-duty 400KN, general type 250KN, light-type 125KN, square type manhole covers have 500*500 B125　500*500 B125　600*600 B125　C250　700*700 B125　450*750 B125　C250　700*800 B125 and other di...

Why choose radiator instead of floor heating for h

　　In the northern and southern heating markets, in addition to mainstream heating methods such as radiators, floor heating (referred to as floor heating) has also gradually entered the market. For heating users, what is good and b...