The following are the estimated parameters for the HR-A-020 in-ground round tube adult Denmarkbasketball hoop:

I. Main Structural Parameters

* Main Pole Material and Specifications:

Possibly high-strength seamless steel, such as φ165×3.0mm or φ219×4mm round tubes, with wall thickness tolerance controlled within ±0.2mm to ensure impact resistance and durability.

* Surface Treatment: Possibly powder coating or baking paint, rust-proof and corrosion-resistant, suitable for long-term outdoor use.

* Extending Arm Design:

Extending arm length may be 1.8 meters or 2.25 meters to adapt to different venue requirements.

* Extending Arm Structure: Possibly adopts a double-layer reinforcement design, with the main arm being an 8cm×12cm square tube and the secondary arm being a 5cm×8cm square tube, connected to the upright through a three-point tie rod to form a five-point support system, enhancing stability.

**Underground System**

**Embedded Component Dimensions:** Possibly an 80cm×80cm×100cm reinforced concrete base with an internal Φ16mm threaded steel welded frame. After being buried underground, it requires pouring C30 concrete and compaction for fixation.

**Buried Depth:** Possibly 600mm (including the concrete base) to ensure resistance to overturning moment.

**Backboard and Rim Parameters**

**Backboard Specifications:**

**Material:** Possibly high-strength transparent tempered glass, 1800mm×1050mm in size, 10mm-12mm thick, conforming to international standards.

**Frame:** Possibly edged with aluminum alloy, with shock-absorbing pads at the bottom for athlete safety.

**Rim Configuration:**

**Rim Diameter:** 450mm (international standard), solid carbon steel with rust-proof surface treatment.

**Spring Mechanism:** Capable of withstanding 50kg-80kg instantaneous impact force, ensuring rim stability during shooting.

III. Other Parameters

Color and Appearance

Main Color: May offer vibrant colors such as blue, red, and yellow to attract attention.

Appearance Design: Simple and elegant, appealing to adult aesthetics.

Applicable Scenarios

Suitable for school playgrounds, community outdoor areas, sports venues, etc., meeting the needs of adult competitions and youth training.