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Concentrations (Tables) | 6 Months Ended
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Jun. 30, 2020
Risks and Uncertainties [Abstract] |
Schedule of customers |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
Customer |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
A (Beijing Daopei, a related party) |  |  | * |  |  |  | 14 | % |  |  | * |  |  |  | * |
B (Hebei Daopei, a related party) |  |  | * |  |  |  | 14 | % |  |  | * |  |  |  | * |
C |  |  | 28 | % |  |  | 20 | % |  |  | 29 | % |  |  | 24 | %
D |  |  | 17 | % |  |  | 14 | % |  |  | 17 | % |  |  | 16 | %
E |  |  | 14 | % |  |  | * |  |  |  | 14 | % |  |  | * |
| * | Less than 10%

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- Definition Tabular disclosure of arrangements in which the entity has committed resources to supply goods or services to a customer. May include identification of the goods or services to be furnished, identity of the purchasing party, pricing, effects on pricing for failing to deliver the [minimum] quantities required to be furnished, cancellation rights, and termination provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(25)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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