what type of screws to use for drywall

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  • Poor pretreatment before plating; Bath temperature is too low; Poor quality of additives or too many additives and organic impurities will cause poor bonding. The quality of additives also has an effect on coating foaming. Some additives react incompletely during synthesis and continue to polymerize during long-term storage or use. The additive tends to distort the crystal lattice and cause stress, causing the coating to bubble.


  • Post time: 15-09-22
  • 6. If the damage volume of the bird cage is large, it needs to be repaired patiently. If the project is large, it needs to be repaired immediately to prevent the damage from continuing to expand. Of course, you can go to the repair shop to maintain specially.

  • 2. Eliminate caked zinc residue on zinc liquid surface

  • Post time: 28-11-22
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