White Nylon Sheet

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FAQ

What's the difference between a ductile iron well and a composite resin manhole cover?
Ductile iron wells: cast iron, light weight only about 1/3 of the easy transportation, installation and maintenance, greatly reduce the labor intensity of workers, natural security: according to the needs of customers is also equipped with anti-theft lock structure, to achieve this property.
What composite material is used for composite manhole covers?
Composite covers are generally SMC (unsaturated polyester resin fiber reinforced "sheet" mold plastic) or BMC (unsaturated polyester resin fiber reinforced "group" mold plastic) plus steel as raw material. In quality, SMC produced composite covers better than BMC plus steel, higher load.
Are SMC tablets harmful to the body? Our factory produces SMC. I have contact every day. Is there any odor that is harmful to my health?
The state is recognized and safe.
Where are the differences between the products made of stone and resin?
If the quality of the tree ester products, the release of toxic substances will be more, longer.Of course, the stone now has man-made, with resin produced all kinds of marble and sheet metal.
What is the difference between plastic die casting and compression molding? Please be specific
The obvious advantage of plastic forming of thermosetting materials is the simplicity of the system. Place the material in a heated cavity and keep it to the desired time. Because the process is simple and the cost is low. Additives and reinforcing agents are irregular and have better strength. Since there is no gate and runner, no waste of materials, mold almost no maintenance. The parts have good uniformity, no casting and flowing marks, and reduce the cost of modification. According to the structure of the product and the application characteristics of the plastic, we can use full pressure mold, semi pressure mold and closed die (see the article about the plastic mould).
Composite manhole cover or cast iron well cover?
The new composite made of color composite manhole covers can reach 90 tons, which can be used as a substitute for cast iron covers, and the northern color is the patent name of Beijing Pan Asia Electric
Does floor heating emit toxic gas?
After the purchase contract signed with the merchant, asking for invoices, in order to avoid problems when businesses shirk responsibility
Is the gas released from the heating of the SMC sheet poisonous?
If unsaturated polyester resin is not doped with toxic solvents, the gases usually released after heating are not poisonous.