The EPS modules from Duolai Castle are considered "bulky goods"—they are light in weight but take up significant space. Due to the different house model styles you choose and the varying number of doors and windows, the quantities of EPS modules (numbered 1-12) will differ. Additionally, the modules feature hyperbolic curved arcs and come in irregular sizes, so the packing quantity will vary based on these factors. Typically, you need to select a house model first, and our engineers will calculate the packing quantity and recommend the most suitable shipping solution based on your choice.

For example: take the 28㎡ house model with 1 door opening and 2 window openings. One 40HQ container can hold 4 sets of EPS modules for this style, but auxiliary materials such as doors, windows, mortar, putty, and latex paint cannot fit inside. If you require these auxiliary materials from us, one 40HQ container can hold 3 sets of modules.

As a manufacturer of EPS modules, we entrust our partnered trading companies—who have import/export rights and are familiar with the customs codes and declaration processes for our products—to handle sales. For transportation, these trading companies typically coordinate with professional freight forwarders. The trading company will manage the export customs declaration for you, while the freight forwarder will handle logistics from the factory to the port, container loading, and shipping. Together, we form a professional service team, ensuring that from initial communication to the moment you receive the goods, a dedicated team supports you throughout the entire process until your order is completed. Of course, if you have long-term partners such as a designated trading company or freight forwarder, we will fully cooperate with them to ensure the smooth completion of your order.

Normally, our spot warehouse has a small amount of stock, but it is dynamic inventory and may be ordered and shipped away by others at any time; In order to ensure that it does not affect your construction progress, please provide payment confirmation for the order. We will arrange production according to the order of deposit. Normally, for orders of 30 sets (1000 square meters) or less, we can complete production and have delivery status in the fastest 15 working days.

Our graphite EPS module material is B1 level flame-retardant material with an insulation coefficient of 0.03. It has CE, SGS and other certifications and tests. If you need customs clearance and tax exemption, we can assist in providing a certificate of origin

The construction process of EPS module dome house is generally divided into four steps:
1. Foundation construction: There are usually two ways to achieve foundation construction. Method A - After the layout drawing is determined, the reserved positions for sewage pipes, water supply and drainage, and power supply are first determined according to the layout drawing. Then, concrete is used to harden the ground with a thickness of 20-30cm; Method B - If your plot cannot be hardened due to policies or other reasons, then Plan B can be used - use steel frames or anti-corrosion wood to create an elevated platform above ground, and then lay fixed cement pressure plates on this platform. Similarly, it is necessary to reserve space for water supply, drainage, and power supply, and then build an EPS dome house on this platform;
2. After the foundation is built, the EPS modules of the dome house can be assembled on the ground. Each module has a numerical number on it. According to the technical