Chinese Silver Portoro Black and White Marble Slabs For Tiles and Countertops
The remarkable combination of a deep black backdrop and white veining is present in Silver Portoro marble. It is a popular option for the sophisticated client because of its dramatic and fluid designs.Quarried in China, Silver Portoro Stone is a beautiful black marble with horizontal silver veining. For exterior and interior monuments, worktops, wall and floor applications, fountains, mosaic pool and wall capping, steps, window sills, etc., as well as other design projects, this Silver Portoro Marble is very suitable. Other names for it are Silver Dragon Marble, Silver White Dragon Marble, China Nero Portoro Marble, and Silver White Marble.
A basic feature of this, Portoro marble is its gold veins, is the background color that has to be as darker as possible attaining a "black sepia color", which is typical of all our material and absolutely changes its optical effect during polishing and installation. Silver Portoro Marble can be progressed into Sanded, Polished, Sawn Cut, Rock faced, Sandblasted, Tumbled and many more.
Product Parameters
1. material: |
Silver Portoro Marble, Silver Dragon Marble |
2. color: |
Black and White |
3. finish: |
polished, honed, antique, sandblasted, etc. |
4. available sizes: |
slab: |
2400up x 1200up x 15mm, 2400up x 1200up x 20mm, 2400up x 1200up x 30mm, etc. |
tile: |
305 x 305 x 10mm, 305 x 610 x 10mm, 610 x 610 x 10mm, etc. |
cut-to-size: |
457 x 457 x 10mm, 300 x 300 x 20mm, 300 x 600 x 20mm, 600 x 600 x 20mm, etc. |
stair: |
1100–1500 x 300–330 x 20/30mm, 1100–1500 x 140–160 x 20 mm, etc. |
countertop: |
Rectangular Kitchen Countertop: 26" x 96", 26" x 98", 28" x 108" Curved Kitchen Countertop: 36" x 78", 39" x 78", 28" x 78" Kitchen Table Top: 72" x 39", 96" x 39"; Kitchen Bar Top: 12" x 78", 15" x 78". Normal Thickness: 3/4", 1 1/2", 1 3/16" Edge Finished: Eased, Beveled, Bullnose, Ogee, Cove, Laminated and non-laminated Edge, etc. |
sink: |
500 x 410 x 190mm, 430 x 350 x 195mm, etc. |
mosaic: |
300 x 300 x 8mm, 457 x 457 x 8mm, 610 x 610 x 10mm, etc. |
5. packing: |
slab: |
plastic inside + strong seaworthy wooden bundle outside |
tile: |
foam inside + strong, seaworthy wooden crates with reinforced straps outside |
countertop: |
foam inside + strong, seaworthy wooden crates with reinforced straps outside |
sink/mosaic/cut-to-size: |
foam & carton box inside + strong seaworthy wooden crates with reinforced straps outside |
6. lead time: |
During the first 10 days after receiving the deposit, |
7. MOQ |
We can accept wholesale and retail. There is no limit for quantity. But the more quantity, the lower price. |
8. payment terms: |
30% DEPOSIT, BALANCE WILL BE T/T AT SIGHT AGAINST FAXING COPY OF B/L |
western union |
irrevocable 100% L/C at sight |
9. samples: |
free samples are available |
10. usage: |
hotel, residential, plaza, etc. |
Detailed Photos




Company Profile
Quality Grade
We classify it into 3 grades:
Grade A: few pink hair lines & 1-3 crystal lines with width less than 2mm per piece;
Grade B: a few pink hair lines & 1-3 crystal lines with width between 2 and 5mm per piece;
Grade C: a few pink hair lines & some crystal lines with all different widths.
So the qualities will be like these:
1st choice: all grade A pieces, some pieces may not have pink hair lines but normally have crystal lines;
commercial choice ... with both grade A & grade B;
Low quality, with different qualities mainly for Mid-East market, certainly will have some bad pieces not accepted.
About US
XIAMEN KA UNITED has been specializing in USA, Canada, Europe, Asian, and Australian markets for very long time.
Some of clients buy cut-to-size and irregular-size granite, marble, and quartz products, and some buy countertops and slabs quartz products.
KA UNITED staff have scores of years of experience in production administration, quality control, and marketing.
It's own factories carry the top workers of workmanship in the field of Stone.
KA UNITED has been at the Stone Fair with Verona Fair, USA fair COVERINGS in Atlanta, XIAMEN stone FAIR, Marmomacc Verona fair,and so on.
Our advantages
1) Own slab yard and block yard
2) More than 8 years experience in export business.
3) Own quarry with stable supply and good price
4) Factory direct with prompt delivery
5) Use imported Italian machines and tools to ensure quality
6) Well-trained QC team inspects carefully from cutting to packaging
Professional Inspection
Before packing, our inspector will inspect all the goods' surface finish, thickness, and edge finish to see if they meet the customers' requirements, one piece by piece.
If the countertop need to be seamed, we will also put the seamed tops together to make sure the color and thickness are the same.
Loading
Experienced and professional workers will load the crates carefully to make sure the goods won't be easily broken.
After loading, fumigated wooden bundles will be braced between each crate to strengthen its stability.
Just contact us freely for your inquiry; we are ready to offer you good products and good service.
Go to kaunited.en.made-in-china.com, and you will get more.