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	High strength, anti-deform, low expansion, high refractoriness. Preventing burn-in, deform, shifting during pouring for hollow camshaft castings. 
	
		
			| Technical Parameters | 1. Cold tensile strength: > 20MPa; 2. Bending: 0.1mm ~ 0.3mm;
 3. Expansion: 0.1% ~ 0.3% ;
 4.Refractoriness: ≥1800℃.
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			| Directions | Same as tranditional resin coated sand. |  
			| Applications | Complex, tiny, thin iron casting. |  
			| Remarks | Keep away from water, moisture, and direct sunlight. |  
			| Ingredients | Silica sand, phenolic resin, and other additives |  
			| Packages | 50kg、500kg、1000kg |  |  |