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los ntawm Admin nyob rau hauv 23-04-20
Txheej Txheej Txheej Sab nrauv 1. Txias galvanizing compound + sealer + PU lossis Fluorocarbon 2. Epoxy graphene zinc + mid coat ++ PU lossis Fluorocarbon 3. Epoxy zinc primer + mid coat ++ PU lossis Fluorocarbon Sab hauv 1. Cold galvanizing com ...
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