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Why HAICHANG OPTOTECH? - HAICHANG OPTOTECH is one of the leading LED lighting and LED display manufa...
Comparison between Hot Rolled and Cold Rolled Pipe
Seamless steel tube in pipe insulation can be classified into two categories: hot-rolled seamless st...
Connection Method of Large Flanges
Large flanges refer to products that sizes go beyond national conventional standards on flanges. Siz...
Classification of Steel Castings
Steel castings are used for manufacturing machinery accessories with higher requirements on intensit...
Classification of Steel Castings
Steel castings are used for manufacturing machinery accessories with higher requirements on intens...
How to Dig the Potential of Valve Industry
Today's continuous progress in society economy and technology and constantly improvement of peop...
Solutions for High-frequency Pipe Opening and Crack
High-frequency pipe has many problems among which opening and crack are the two common ones. This a...
Intro to Hot Dip and Cold Galvanized Steel Pipe
Galvanized pipe can be classified into two kinds: cold galvanized steel pipe and hot dip galvanized ...
Do Maintenance of Stainless Steel Flanges Correctly
Different flanges require different installation methods and maintenance approaches. As to stainless...
Classifications of Welded Steel Pipe
Welded steel pipe is shaped up by crimping steel plate or steel belt and then it was made after weld...
Leakage Cases Happen to Seal Gaskets of Flanges
For sealing materials, they suffer from contact pressure of bonding surface and elastic restoring fo...
List for GB/T Standards of Seamless Steel Pipe
Seamless steel pipe can be classified into the following several kinds because of its different sta...