General engineering construction in the past time lacks maintainance to
loosing marble.So soon the construction takes place lesion,such as yellowing.A few year ago, a company in Shanghai undertook a commercial building 28 floors surface except yellow, repair, renovation project.They're shocked at the spot.Saltpetering place has changed into large area of yellow spot.More serious presented coffee.Dispose yellowing is the first priority affair.And then it shoulg grind and polish.Repairing holes and waterproof protection are the final two steps.Especially it need to polish with wax.
Meassure-made artificial stone home furnishing
Why stone past its prime day by day?
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