On the occasion of the 2026 Spring Festival, Jinan Zhonghe Lianxin Company extends its sincerest greetings and best wishes to all employees, partners, and customers! The echoes of the New Year's bells have barely faded, and the spirit of renewal is already in the air. Standing at this crossroads of time, we are filled with gratitude and hope as we review the arduous journey of 2025 and look forward to the opportunity-filled year of 2026. In the past year, thanks to the joint efforts of all colleagues, the company, driven by innovation and based on responsibility, has written a new chapter of high-quality development. In the new year, we will continue to work hand in hand, taking firmer steps towards a more brilliant future.

I. Review of 2025: Stability Seeking progress amidst challenges, we have achieved fruitful results. 2025 was an extraordinary year in the development of Jinan Zhonghe Lianxin Company. Facing a complex and ever-changing market environment, we adhered to the core values ​​of "integrity, innovation, and win-win cooperation," achieving significant breakthroughs in multiple fields: Business Expansion and Technological Innovation: The company successfully promoted the implementation of "smart city" solutions, carrying out more than 10 key projects in Jinan and surrounding areas, covering transportation, security, and other fields. The number of technology patent applications increased by 30% year-on-year. These achievements not only improved urban management efficiency but also demonstrated our leading role in digital transformation.[D]

Team Building and Talent Development: Through the "Elite Program" training system, employee skills have been comprehensively improved, and the annual employee satisfaction survey shows an engagement rate of 95%. We have added 50 professional talents, expanding the team size to 300 people, injecting fresh vitality into the company.

Social Responsibility and Brand Influence: We actively participate in public welfare undertakings, such as sponsoring local education projects and environmental initiatives, and have won the title of "Outstanding Social Responsibility Enterprise in Shandong Province". Customer satisfaction remains high, and our partner network has expanded to 20 provinces and cities across the country.

These achievements embody the hard work and wisdom of every employee, and are inseparable from the trust and support of customers and partners. Just like the spring breeze... Like raindrops, every drop of effort eventually converges into a mighty river, propelling the company towards steady and long-term growth.

II. Outlook for 2026: Innovation-Driven Development, Jointly Drawing a Blueprint

2026 marks a new starting point, a year of both opportunities and challenges. Jinan Zhonghe Lianxin Company will focus on the strategic direction of "Technology Empowerment, Serving the People," and will prioritize the following plans:

Deepening Digital Transformation: Focusing on the application of artificial intelligence and big data, the company plans to launch a new generation of intelligent service platforms to enhance user experience. The goal is to achieve a 20% revenue increase and expand international market cooperation.

Strengthening Talent Strategy: Optimize incentive mechanisms, launch the "Future Leaders" training program, and ensure the sustainable development of the talent pool. Advocate a "family culture" to enhance employees' sense of belonging.

Practicing Green Development: Respond to the national "dual carbon" target, integrate environmental protection concepts into product design, and strive to reduce annual carbon emissions by 15%.

We firmly believe that innovation is the lifeblood of an enterprise. Just like a new sprout breaking through the soil, only by embracing change can we stand firm in the tide of the times. In 2026, let us ride our dreams and live up to our youth.

Three New Year's Greetings: Grateful for Your Partnership, Spreading Warmth

As the New Year begins, everything is renewed. Jinan Zhonghe Lianxin Company sincerely wishes:

All employees: Good health and happy families! Thank you for your hard work; it is your perseverance and hard work that have forged the backbone of the company. May the New Year bring you smooth work and blossoming dreams.

Partners and customers: Prosperous careers and all your wishes fulfilled! Your trust is the driving force behind our progress. In 2026, we will repay your support with even better service.

All sectors of society: Harmony, health, prosperity, and well-being.Prosperous! The company will continue to shoulder its social responsibility and create a better tomorrow together.

The spring breeze brings warmth to the New Year's wine, and the New Year's sunshine has already shone brightly on our journey. Let us embrace hope, meet challenges with unity, and write a new chapter with a spirit of hard work. Jinan Zhonghe Lianxin Company is willing to join hands with you to set sail in 2026 and share glory!

The valve train mainly consists of valves, valve springs, and valve lock clips. Typically, the intake port diameter is larger than the exhaust port diameter to increase intake volume, thereby improving combustion efficiency and resulting in better power output. The intake and exhaust valves of a car engine are mushroom-shaped valves, consisting of a valve head and a valve stem. The valve top surface can be flat, concave, or convex. Currently, the flat-top valve is the most widely used due to its simple structure, ease of manufacturing, and small heat-receiving area. Both can be used.

The valve and valve seat or valve seat ring are sealed by a conical surface. The angle between the valve cone surface and the valve top surface is called the valve cone angle. The valve cone angles for intake and exhaust valves are generally 45 degrees, with only a few engines having an intake valve cone angle of 30 degrees.

The function of the valve assembly is to control the intake and exhaust of each cylinder via pushrods driven by the camshaft, thus enabling the normal operation of the engine.