535HP13685882529minutes ago48
It is said that due to the optimistic future and tight resources, and the price of raw materials has...
535HP13685882534minutes ago46
Later, Mexican scientists also found that copper has a . Recently, British researchers found that c...
570HP15564270044minutes ago38
The factors of smooth development the modernization of smooth means can make the world gradually &am...
965HP11392486549minutes ago31
The wellhead clamp head is connected to the lower clamp head of the drive head. Some driving of gro...
256HP15831237759minutes ago41
AdministrationNational standard galvanized pipe,The square tube for fluid transportation (gbt-) is a...
632HP1955065911An hour ago39
Relative humidity maintenance of quick-frozen warehouse: humidification of quick-frozen warehouse is...
717HP1274435421An hour ago39
Household worries.Bidirectional Product Description: the tensile strength of the material is ~ mpa,...
256HP1583123771An hour ago31
Steel used & mdash& mdash; Such as bridge steel, ship steel, boiler steel pressure vessel st...
632HP1955065911An hour ago50
and the professional cold warehouse shall be installed. The cold warehouse shall be installed. The...
466HP1595758051An hour ago47
In addition, the use of ° and S-shaped bends should be reduced as much as possible durin...
