According to the US patent US7648594B2, Japan's Aisin Keikinzoka Company invented a new type of aluminum alloy with high extrusion performance, machinability, wear resistance and caulking. Its composition (% by mass): 4.1~5.1Si , 0.3~0.4Mg, 0.01~0.20Cu, 0.05~0.15Mn, 0.01~0.50Cr, 0.29~0.90Fe, the rest are Al and unavoidable impurities. The alloy has an elongation of more than 9% and a cutting length of ≤ 40 mm. Both the United States and Japan have obtained patents.
stone carving purpose:
1. Watch, hang and collect stone carvings of stone craft ornaments.
2. Grottoes and cliff carvings.
3. Stone carving in the cemetery.
4. Stone carvings in palaces, mansions and gardens.
5. Stone carvings of temples, temples, temples, and temples.
6. Stone bridge and stone carving.
7. Stone Que and Memorial Archway.
8. Stone carvings of tower buildings.
9. Stone carvings on steles.
10. Stone carving of figures and animals.
11. Stone carving for life craft articles.
12. Modern urban gardens and commemorative stone carvings.
Landscape Stone,Black Landscape Stone,Landscape Stone Steps,Agate Landscape Stone
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