連絡先情報

<h2>Contact Information</h2>

<p>For product inquiries, quotations, order support, shipping questions, returns or other business matters, please contact LHYY using the information below.</p>

<h3>Business Information</h3>

<p>
<strong>LHYY / Beijing Lanhaiyuyan Trade Co., Ltd.</strong><br>
Address: 30-2-J02, Guanyingyuan West District, Xinjiekou Street, Xicheng District, Beijing, China<br>
Website: <a href="https://www.lhyyglobal.com">www.lhyyglobal.com</a><br>
Email: <a href="mailto:service@lhyy.net.cn">service@lhyy.net.cn</a><br>
WhatsApp: <a href="https://wa.me/8613910186626">+86 139 1018 6626</a>
</p>

<h3>Sales &amp; Custom Project Inquiries</h3>

<p>For custom scientific building block models, corporate gifts, branded merchandise, bulk orders or OEM/ODM projects, please submit your project requirements through our Request a Quote page:</p>

<p>
<a href="/ja/pages/request-a-quote">Request a Quote</a>
</p>

<h3>Order &amp; Customer Support</h3>

<p>For questions about an existing order, delivery, product availability, returns or after-sales support, please email <a href="mailto:service@lhyy.net.cn">service@lhyy.net.cn</a>.</p>

<p>Our team normally responds within 1–2 business days.</p>

<h3>International Customers</h3>

<p>LHYY works with customers worldwide. For shipping or customs-related questions, please include your destination country, postal code, order number or quotation reference when contacting us.</p>