人造碳化硅：黑碳硅、绿碳硅、铈碳化硅、碳化硼；
Artificial SiC: black silicon carbon, green silicon carbon, cerium silicon carbide, boron carbide;
我公司生产的油石有棕刚玉（A）、白刚玉（WA）、黑碳化硅（C）、绿碳化硅（GC）等材质。
The oilstones produced by our company include brown corundum(A), white corundum(WA), black carborundum(C), green carborundum(GC)etc.
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