The theories, raw materials and processing flow in each preparing methods have been introduced.

对各种制备方法的原理、原料、工艺流程进行了介绍。

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Because of its special materials and processing technology, making it more in line with the ecological environment, no pollution.

由于其特殊的取材和加工工艺，使其更加符合生态环境、无污染。

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We could produce all kinds of sounds boxs, also including processing with customer's materials and processing with customer's samples.

楼主为什么要说是代理加工呢？其实生产就可以了。

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Raw materials, processing and consumption are all part of a process through which transport is powered.

ECONOMIST: On Canada's border

Investors will also converge on the compelling opportunities in core economic sectors such as banking, mobile telecoms, internet, electricity, building materials, and food processing.

BBC: Investors eye resourceful Burma

SOEs in sectors like equipment manufacturing, raw-materials production and food processing.

ECONOMIST: The other China