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The hardness of gray iron 250 castings is required to be 210-240. The hardness of the original batch is about 190. Can the hardness be increased by heat treatment?	1 Answer	2020-08-31 16:31
Classification of alloy steel castings	2 Answer	2020-08-31 16:31
Can cast iron and cast steel be pressure cast?	1 Answer	2020-08-31 16:31
How to keep the original fracture state after the iron casting is broken?	1 Answer	2020-08-31 16:31
Aluminum alloy casting	3 Answer	2020-08-31 16:31
Classification of casting?	1 Answer	2020-08-31 16:31
QT450 casting defects, seek help	6 Answer	2020-08-31 16:30
Is lost foam casting cheaper than sand casting?	3 Answer	2020-08-31 16:30
Is the large diameter butterfly valve usually cast	2 Answer	2020-08-31 16:30
How to solve the problem of carbide in thin-walled parts? Smelting, process, etc., 1-2kg, wall thickness 6-12?	1 Answer	2020-08-31 16:30
Nitrogen porosity occurs in sand covered molding of iron mold	1 Answer	2020-08-31 16:30
Ductile iron shrinkage cavity	2 Answer	2020-08-31 16:30
How can the simulation results of casting simulation procast software be saved?	0 Answer	2020-08-31 16:30
Investment casting is better at home or abroad	5 Answer	2020-08-31 16:30
What about the softening annealing process of KmTBCr26 castings?	0 Answer	2020-08-31 16:30
How to remedy the casting after spheroidizing recession?	3 Answer	2020-08-31 16:30
How to weld aluminum casting A356 and aluminum pipe 6061?	0 Answer	2020-08-31 16:30
What are the methods of casting defect detection?	1 Answer	2020-08-31 16:30
What is the effect of excessive inoculation of gray cast iron?	3 Answer	2020-08-31 16:30
What are the causes of surface cracking of steel castings	1 Answer	2020-08-31 16:30

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24 one steel scrap
6 two titanium alloy
156 three cast steel
3103 four casting
2702 five casting
Article 28 six Carburetor
9 seven Casting equipment
539 eight Mechanics
11 nine Coremaking

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