About Silicon Nitride Si3N4 Powder:The silicon nitride composition is silicon and nitrogen. Si3n4 is the most thermodynamic stable in silicon nitride. It is white solid with a high melting point, relative chemical inert, diluted HF and hot H2SO4 atta
10mm armoured cable gland industry background industry background Wire and cable are widely used in all departments of the national economy, which is the fundamental guara
In terms of international pricing benchmarks, according to the CP data released by Saudi Aramco, the propane contract price (CP) in March was $895 / ton, up $120 / ton from the previous month, up 15.48% from the previous month and up 43.20% from the
Foam concrete wall casting methods can be divided into three types: removable formwork casting, formwork-free casting and sandwich wall casting. Among these three types of casting methods, the mold-free casting method is widely used.
Theglobal Apple mobile phone repair product name distribution center transferred toZhengzhou Recently,Zhengzhou Customs held a press conference to release the import and exportsituation of Henan Province, including the names of mobile phone repair to