In a fraction of the cost of the main products, such as steel, which is the main raw material, which is highly valued in the production of steel and pile foundation in 2557 still have the price competition in the steel from countries in Asia, the major manufacturersA result, the price of steel in the emerging markets fluctuation. And the slowdown in production of major steel producer in the country. The government has issued a security measure taxed Safeguard affect the cost of imported steel high up.Including cement, rocks, sand, price cost higher. Because of the needs of the market, there are more and more. The energy is highly adaptive. Therefore, the cost of production is higher rate
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