Technical reference
Existing round-tube mould references
OD × ID, nominal wall and catalogue weight references. Availability and material suitability must be confirmed before quotation.
| OD × ID (mm) | Wall (mm) | GFRP kg/m | BFRP kg/m | CFRP kg/m |
|---|---|---|---|---|
| 4 × 2 | 1 | 0.018 | 0.020 | 0.015 |
| 5 × 2 | 1.5 | 0.032 | 0.035 | 0.026 |
| 6 × 3 | 1.5 | 0.041 | 0.045 | 0.034 |
| 6 × 4 | 2 | 0.031 | 0.033 | 0.025 |
| 8 × 4 | 2 | 0.073 | 0.079 | 0.060 |
| 8 × 6 | 1 | 0.043 | 0.046 | 0.035 |
| 7 × 4 | 1.5 | 0.051 | 0.054 | 0.041 |
| 10 × 6 | 2 | 0.098 | 0.106 | 0.080 |
| OD × ID (mm) | Wall (mm) | GFRP kg/m | BFRP kg/m | CFRP kg/m |
|---|---|---|---|---|
| 12.7 × 7 | 2.85 | 0.172 | 0.185 | 0.141 |
| 18 × 14 | 2 | 0.196 | 0.211 | 0.161 |
| 20 × 16 | 2 | 0.220 | 0.237 | 0.181 |
| 25 × 21 | 2 | 0.282 | 0.303 | 0.231 |
| 30 × 24 | 3 | 0.496 | 0.534 | 0.407 |
| 32 × 28 | 2 | 0.367 | 0.396 | 0.301 |
| 55 × 50 | 2.5 | 0.804 | 0.865 | 0.670 |
| 63.5 × 53.5 | 5 | 1.800 | 1.930 | 1.470 |
Source: current Haikuo product manual or current product-material file. Initial system data only; final dimensions, material, performance and availability must be confirmed in the quotation and approved specification.
What to confirm
Connect the profile to the project.
Send the closest section, critical dimensions, wall thickness and finished length.
Name water, chemicals, UV, temperature, insulation or other service conditions.
Confirm cutting, holes, notches, connection interfaces, labels and packing needs.
State sample need, first quantity, repeat demand and destination country.
Application routes
Continue by working environment.
Supply control
One agreed specification from review to packing.
Profile, material, finished dimensions, processing, identification and packing should be confirmed before repeat supply.
Drawing, dimensions, environment and quantity.
Existing mould, custom review or sample path.
Dimensions, appearance, processing and labels.
Packing length, documents and destination.



Technical support route
Need a diameter, wall or private tube section?
Share the target outside diameter, wall thickness, length and application. Haikuo can review whether a standard tube or custom pultruded section is the clearer supply path.
Project inquiry
Send the dimensions and application you already have.
We will identify the next product, material and supply questions before quotation.