Diamond Pattern Zinc Alloy metal Case For iPhone 4/4S
Feature:
1)dustproof hole plug for iphone and all 3.5mm phone jack mobile phone, made of high quality material without any special smell
2)con…
High obvious effect on surface preparation of die castings, such as deburring, deflashing, marking of fusion casting etc. Compared with common steel shot, zinc shot and stainless steel shot, it has mo…
Usage:
Dichloromethane has strong solubility and no toxicity,etc advantages.It is wide used for manufacturing safety film and orthocarbonate and can also be used for solvent of paint,cleaner for me…
Chemical Name: Zinc sulphate monohydrate
CAS NO.: 7446-19-7
Molecular formula: ZnSO4.H2O
Appearance: White powder
Application: Zinc is mainly used for manufacture of zinc salts of barium, and othe…
The content to be examined The statistics
That should be The actual statistics judgement
Zinc oxide % >=99.70 99.79 qualified
Insoluble object in the hydrochloric
acid
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