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| Number of visits： |
12 |
| Unit Price： |
Face to face |
| Minimum Ordering： |
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| Total supply： |
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| period for dispatch： |
Delivery within 3 days from the date of buyer's payment |
| Valid until： |
Long-term effectiveness |
| Last update： |
2021-03-31 10:46 |
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There are many types of chemical raw materials and they have a wide range of uses. There are as many as 5-7 million kinds of chemicals in the world, and more than 100,000 kinds are sold and circulated on the market, and more than 1,000 new chemicals come out every year, and 150-200 kinds of them are considered to be carcinogenic Things.
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