Product Overview

The document presents specifications for a series of hardware handrail inserts under the brand "卡拉五金" (Keala Hardware). Multiple models are listed, including 991801, 991802, 991803, 991804, and 991805, each presumably representing different handrail insert types or sizes.

Dimensions and Models

Each model is associated with three key dimensions labeled as L, H, and D, which likely correspond to length, height, and depth respectively. The document provides multiple size variations with measurements in millimeters.

Size Specifications

The sizes are detailed in a tabular format with repeated dimension sets such as 34x75x340, 32x70x340, 35x70x340, and 30x70x340, extending up to lengths of 1540 mm. These dimensions appear to represent different configurations or product variants.

Hole Spacing (孔距)

A critical parameter highlighted is the hole spacing (孔距), given in millimeters (MM). The hole spacing values vary and are listed alongside the dimensions L, H, and D. The hole spacing ranges from 300 mm up to 1500 mm, indicating adjustable or multiple mounting options for the handrail inserts.

Printing and Presentation

The document mentions a size of 210x285 mm with four-color printing on both sides (正反四色), suggesting this is a catalog or product insert format.

Summary of Key Parameters

• Models: 991801, 991802, 991803, 991804, 991805
• Dimensions: Multiple sets of L, H, D values, e.g., 34x75x340 mm, 32x70x540 mm, etc.
• Hole Spacing: Ranges from 300 mm to 1500 mm, critical for installation compatibility.
• Format: Catalog size 210x285 mm, four-color printing both sides.

Critical Notes

The document primarily serves as a technical specification sheet for handrail inserts, focusing on dimensional data and hole spacing for installation. No procedural instructions or normative standards are included. The data is essential for selecting the correct handrail insert model and size based on installation requirements.