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Requirements for composite manhole covers during construction. During the construction operation of the composite manhole cover, in order to ensure the construction quality and use efficiency of the manhole cover, certain construction requirements are required, but many users do not understand its s
Performance of large flat welding flangesThe common overall flanges of large flat welding flanges include flat welding flanges and butt welding flanges. The flat welding flange has poor rigidity and is suitable for occasions where the pressure p≤4MPa; the butt welding flange is also called a high n
Precautions for welding stainless steel flanges1. Stainless steel flange fittings have high hardenability after welding and are easy to crack. If the same type of stainless steel electrode (g202, G207) is used for welding, preheating above 300°C and slow cooling at about 700°C must be carried out
How much do you know about the storage skills of stainless steel flanges?Stainless steel flange is a very good pipeline component. Due to the performance advantages of stainless steel itself, the application range of stainless steel flange is very wide. The corrosion resistance of stainless steel fl
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