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 look back with gratitude and hope on the challenging year 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. style="box-sizing: border-box; margin: 0px;">I. Review of 2025: Steady Progress and Fruitful Results

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2025 marks an extraordinary year in the developmental history of Jinan Zhonghelianxin Company. Faced with a complex and ever-changing market environment, and guided by our core values ​​of "Integrity, Innovation, and Mutual Success," we have achieved significant breakthroughs across multiple domains: Business Expansion and Technological Innovation: The company successfully advanced the implementation of "Smart City" solutions, executing over 10 key projects in Jinan and its surrounding regions—spanning sectors such as transportation and security. Furthermore, the volume of technical patent applications saw a year-on-year increase of 30%. These achievements have not only enhanced the efficiency of urban management but also underscored our leading role in the digital transformation landscape.Team Building and Talent Development: Through our "Elite Program" training system, employees" skill levels have been comprehensively enhanced, and our annual employee satisfaction survey indicates an engagement rate of 95%. We have recruited 50 new professionals, expanding our team to a size of 300 members and injecting fresh vitality into the company. Social Responsibility and Brand Influence: We have actively participated in public welfare initiatives—such as sponsoring local educational projects and environmental protection campaigns—and were honored with the title of "Outstanding Enterprise for Social Responsibility in Shandong Province." Customer satisfaction remains consistently high, and our network of partners has expanded to cover 20 provinces and municipalities nationwide. These achievements are the culmination of the hard work and collective wisdom of every single employee, and they would not have been possible without the trust and support of our clients and partners. Much like the gentle spring rain that nourishes the earth, these countless small efforts have ultimately converged to form a mighty river, propelling the company steadily forward toward a sustainable and prosperous future.\n

II. Looking Ahead to 2026: Innovation-Led, Charting a Shared Blueprint

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The year 2026 marks a new starting point, characterized by the coexistence of both opportunities and challenges. Jinan Zhonghelianxin Co., Ltd. will firmly anchor itself to the strategic direction of "empowering through technology and serving the public good," focusing its efforts on advancing the following initiatives:

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Deepening Digital Transformation: By focusing on the application of artificial intelligence and big data, we plan to launch a new generation of intelligent service platforms to enhance the user experience.

...experience. Our goal is to achieve a 20% increase in revenue and expand our collaborative efforts in international markets. Strengthen Talent Strategy: We will optimize our incentive mechanisms and launch a "Future Leaders" development program to ensure the sustainable growth of our talent pipeline. We will also champion a "family culture" to foster a stronger sense of belonging among our employees. Embrace Green Development: In alignment with the national "Dual Carbon" goals, we will integrate eco-friendly principles into our product design, striving to reduce our annual carbon emissions by 15%. We firmly believe that innovation is the lifeblood of an enterprise. Much like a new sprout breaking through the soil, only by embracing change can we stand tall amidst the tides of the times. In 2026, let us ride on the wings of our dreams and make the most of our prime years.\n III. New Year"s Greetings: Gratitude for Companionship, Warmth Spreads \n At the beginning of the New Year, everything is renewed. Jinan Zhonghe Lianxin Company sincerely wishes: "To all employees: May you enjoy good health and happy families! Thank you for your hard work. It is your dedication and hard work that have made us who we are today....the backbone of our company. May the coming year bring you smooth sailing in your work and see your dreams blossom into reality.

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To our Partners and Clients: May your businesses flourish and all your endeavors meet with success! Your trust serves as the driving force behind our progress; in 2026, we pledge to repay your support with even higher quality services.

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To the Community at Large: May harmony, well-being, and prosperity prevail! Our company remains committed to upholding its social responsibilities as we work together to build a brighter tomorrow.

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As the spring breeze brings warmth and renewal, the sunshine of the New Year already illuminates the path ahead. Let us embrace hope, face challenges with a spirit of unity, and write a new chapter through diligent action. Jinan Zhonghelianxin Company looks forward to joining hands with you to set sail on a grand voyage in 2026 and share in the glory of our collective success!

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The structure of the

valve group is mainly composed of valves, valve springs, valve lock clips, etc. Normally, the diameter of the intake port is larger than the exhaust port, mainly to increase the intake air volume to improve the combustion efficiency, so as to obtain better Power output.

The intake and exhaust valves of automobile engines are mushroom-shaped valves, which are composed of two parts: the valve head and the valve stem. The top surface of the valve has the shape of flat top, concave top and convex top. At present, the most widely used is the flat-top valve, which has a simple structure, convenient manufacturing, small heating area, and both intake and exhaust valves can be used.

The

valve and the 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 angle of the intake and exhaust valves is generally 45 degrees, and only a few engines have an intake valve cone angle of 30 degrees.

The function of the

valve group is to control the intake and exhaust of each cylinder through the ejector rod according to the drive of the camshaft to realize the normal operation of the engine.