The challenges faced by the sheep manure organic fertilizer equipment industry in the international market mainly include:

1. Technical competition: In the international market, the production technology of advanced organic fertilizer production line has put forward higher technical requirements for sheep manure organic fertilizer equipment.

2. Quality standards: Developed countries have strict requirements for the quality standards of organic fertilizers, such as the European Union, Germany, Spain, etc., have detailed graded quality standardization management, which poses challenges to the quality and safety of sheep manure organic fertilizer equipment.

3. Price competition: In the international market, the price competition of similar equipment is very fierce. Although the foreign equipment is technologically advanced, the price is higher, and the operation and maintenance cost is also higher, which brings difficulty to the promotion and application of sheep manure organic fertilizer equipment in the international market.

4. International trade barriers: trade protection measures, including tariffs, quotas, technical barriers, etc., may limit the international market access and competitiveness of sheep manure manure equipment.

5. Exchange rate fluctuations: Exchange rate fluctuations in the international market may affect the cost and price of equipment and have an impact on export business.

6. International logistics and transportation: The export of equipment to the international market needs to consider logistics costs, transportation time and equipment protection during transportation.

7. After-sales service and technical support: Providing timely and effective after-sales service and technical support in the international market is a challenge, which requires the establishment of a transnational service system.

In summary, the development of sheep manure organic fertilizer equipment industry in the international market needs to overcome the challenges of technology, quality, price, regulations, competition and other aspects.