Our company was founded in 1996 and located in Dongguan City wanjiang clams Chung industrial zone. Now mainly engaged in air-conditioning refrigeration accessories, such as: Distributor, separate head, differences tubes, three links, T-links, a straight-through, filters, drying filters, filters, connectors, nuts, Elbow, needle valve, reservoir, such as irrigation. I will provide you with the development and design of refrigeration parts, refrigeration accessories, refrigeration accessories Service. welcome to customers samples or drawings of all custom-made kinds of refrigeration parts business.
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ResultsCompared with the separation gel tube, statistical differences were observed in 11 biochemical values obtained with coagulant tubes(P<0.01).
结果采用血凝管与分离胶试管相比11项生化指标存在统计学差异（P<0.01）。
Because of large temperature differences in some local tubes and different expansion coefficients, large stresses of temperature difference are produced and brings about cracking in tubes.
热冲击是由于炉管在某些部位温度变化大，炉管和结焦物的热膨胀系数不同，而产生较大的温差应力，使炉管产生裂纹。
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