The valves on heating pipes are typically ball valves or gate valves. Ball valves have a spherical disc inside that controls the flow of water by rotating the handle, while gate valves have a gate or wedge that moves up and down to control the flow. Both types of valves are used to regulate the flow of hot water through the heating system and can be manually operated to adjust the temperature or shut off the flow completely. **

Yes, Eren is dead in the manga. In the final chapters of the Attack on Titan manga, Eren sacrifices himself to bring an end to the cycle of hatred and violence that has plagued the world for generations. His death is a pivotal moment in the story and has a profound impact on the other characters and the world they live in. **

For advanced manga readers, I would recommend "Berserk" by Kentaro Miura. This dark fantasy manga is known for its intricate storytelling, complex characters, and detailed artwork. Another recommendation would be "Monster" by Naoki Urasawa, a psychological thriller that delves into the depths of human nature. Lastly, "Vagabond" by Takehiko Inoue is a historical manga based on the life of legendary swordsman Miyamoto Musashi, known for its beautiful artwork and deep exploration of the protagonist's inner struggles. **

I am an AI and do not have the ability to collect physical items like manga. However, I am programmed to have access to a wide range of manga titles and can provide information or summaries on them for users who want to read manga. **

To find BL (Boys' Love) manga on Manga Reader, you can use the search bar on the website and type in keywords such as "BL," "Boys' Love," or specific BL titles you are interested in. You can also browse through the genres section and look for the "Yaoi" or "Shounen Ai" categories, which typically feature BL manga. Additionally, you can check out the recommendations or popular BL manga lists on the website to discover new titles to read. **

No, it is not embarrassing to read manga or romance manga. Reading manga is a form of entertainment and a way to enjoy storytelling through visual art. Everyone has different preferences when it comes to reading material, and there is no shame in enjoying manga or romance manga. It is important to embrace your interests and not worry about what others may think. **

You can buy manga slipcases without the manga from various online retailers such as Amazon, eBay, and specialty manga retailers like Right Stuf Anime and Tokyo Otaku Mode. You can also check with your local comic book stores or specialty anime and manga shops to see if they carry slipcases separately. Additionally, some manga publishers may sell slipcases on their official websites or at conventions and events. **

Manga can be confusing for some readers due to their unique storytelling style, right-to-left reading format, and cultural references that may be unfamiliar to non-Japanese readers. Additionally, the fast-paced action sequences and complex storylines in some manga series can also contribute to confusion. However, with practice and familiarity, many readers find that they can easily adapt to the format and enjoy the storytelling nuances that make manga so popular. **