Contact Information for Portable Toilets at Construction Sites

Here are the contact details of companies related to portable toilets at construction sites:

1. Shanghai Guyi Construction Engineering Co., Ltd.
   This company provides services related to portable toilets at construction sites. The contact person is Ms. Zhang, and the contact number is 15024548296. If the project is located in Shanghai or its surrounding areas, you can directly communicate your needs with Ms. Zhang, including toilet specifications, rental periods, and transportation and installation details.

2. Henan Qiantong Environmental Protection Equipment Co., Ltd.
   As a supplier in the Henan region, the contact person of this company is Mr. Wu, and the contact number is 15617779270. Its service scope may cover the Central Plains region, suitable for project parties in need of localized support to inquire about, with a focus on the environmental performance and maintenance plans of the equipment.

3. Shanghai Xinzhang Environmental Protection Equipment Engineering Co., Ltd.
   This company provides dual contact methods: The mobile number of the contact person Mr. Liu is 13564995858, and the landline is 021-68220538. As a local enterprise in Shanghai, its services may focus more on the integration of environmental protection equipment engineering, suitable for projects with special requirements for toilet sewage treatment or energy-saving design.

4. Zhejiang Jinhua Yongkang Xincheng Steel Structure Engineering Co., Ltd.
   The contact person Mr. Li can be reached at 18258930635. This company may provide customized services for portable toilets by combining steel structure technology, suitable for construction sites that require long-term use or have high wind and earthquake resistance requirements. It is recommended to clarify the usage environment and budget range when consulting.

Precautions:

• It is advisable to clarify the details of your needs (such as the number of people, usage duration, and budget) before contacting the suppliers so that they can provide targeted solutions.
• For cross-regional cooperation, confirm transportation costs and installation responsibilities.
• Prioritize companies with environmental protection certifications or engineering qualifications to ensure that the equipment meets hygiene and safety standards.
• Before signing a contract, verify the service terms, including the frequency of cleaning and maintenance and the response time for faults.

The above information is compiled based on publicly available data. It is recommended to double-check the contact details and service content through official channels before actual cooperation.