Our company has specialty experienced in producing fastener for more than 20 years and strong technology strength.
本公司秉承二十多年紧固件专业制造经验，技术力量雄厚；
Because of the specialty of ingredient and production of the ready mixing pumping concrete the probability of producing cracks is higher than non pumping concrete.
由于预拌泵送混凝土配料和制作的特殊性，使得它的裂缝概率高于非泵送混凝土。
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