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Tel:137-8556-1311、131-0268-8178 | 中文 ENGLISH
Hotline:
137-8556-1311
131-0268-8178

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Aboutus

Tangshan Kunfeng Biotechnology Co., Ltd., formerly known as Tangshan Wansheng Biotechnology Co., Ltd., was founded in 2019 with a registered capital of 50 million yuan. It is an agricultural fertilizer production enterprise specializing in the research and development, production, and sales of water-soluble fertilizer technology. The company is located in Leting Economic Development Zone, Hebei Province, on the coast of Bohai Sea, adjacent to Jin...
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Product QualityStandards

Magnesium sulfate for agricultural use

ITEM

7-25

8-18

8-27

9-25

10-28

15-25

20-25

20-27

21-27

23-27

25-27

Total MgO≥%

25

18

27

25

28

25

25

27

27

27

27

W.MgO≥%

7

8

8

9

10

15

20

20

21

23

25

 S ≥%

5.6

6.4

6.4

7.2

8

12

16

16

16.8

18.4

20

 Mg ≥%

4.22

4.82

4.82

5.43

6.03

9.05

12.06 

12.06 

12.66 

13.87 

15.08 

鉛 Pb≤%

0.0005

 As ≤%

0.0002

 PH

5-9


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