Solar-grade polysilicon prices in March are likely to exceed $100

The lack of solar energy sources continued. The spot price of solar wafers in March 6 was 3.8 US dollars per piece, up 5.5% compared with 3.6 US dollars in February. The price of polycrystalline silicon was all from 70 US dollars per kilogram in February to 70~80. The US dollar, but the shor.......

Blood meal processing method

The blood of livestock and poultry is rich in protein and has high nutritional value. Through simple processing, high-quality high-protein feed, blood meal, can be obtained. The specific processing methods are as follows:

First, the carrier blood meal simple processing method

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