Glass; multiple-walled insulating units of glass

HS v2022 Code: 7008

Chapter	Heading	Sub-heading
70	08	n/a

Code	7008
Version	HS v2022
Hierarchy Level	4
Datasource	WCO
Chapter	70

Ancestor Codes: Glass and glassware

This Code: Glass; multiple-walled insulating units of glass

Child Codes: Glass; multiple-walled insulating units of glass

Sibling Codes (Nearest 5): Glass; float glass and surface ground or polished glass, in sheets, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked; Glass of heading no. 7003, 7004 or 7005, bent, edge-worked, engraved, drilled, enamelled or otherwise worked, not framed or fitted with other materials; Safety glass, consisting of toughened (tempered) or laminated glass; Glass mirrors; whether or not framed, including rear-view mirrors; Carboys, bottles, flasks, jars, pots, phials, ampoules, containers of glass of a kind used for the conveyance or packing of goods; preserving jars of glass; stoppers, lids and other closures of glass

About glass; multiple-walled insulating units of glass

HS code 7008 covers the production and trade of multiple-walled insulating units of glass. This industry plays a crucial role in the construction and energy efficiency sectors, providing essential materials for windows, facades, and other architectural applications. As a key component of modern building design, the demand for high-performance insulating glass units continues to grow, driven by the need for improved thermal and acoustic insulation in both residential and commercial properties.

Production process

The production of multiple-walled insulating units of glass typically involves the assembly of two or more panes of glass, separated by a sealed air or gas-filled space. This process often utilizes specialized machinery and equipment to ensure precise dimensional tolerances, airtight seals, and consistent quality. Manufacturers may employ techniques such as tempering, lamination, or low-emissivity coatings to further enhance the thermal and acoustic properties of the final product.

Production inputs

The main inputs required for the production of multiple-walled insulating units of glass include high-quality float glass, sealants, spacers, and specialized machinery. Manufacturers may also utilize various gases, such as argon or krypton, to fill the space between the glass panes, improving the overall thermal performance of the units. Additionally, the industry relies on a skilled workforce capable of operating the specialized equipment and adhering to strict quality control standards.

Production outputs

The primary output of HS code 7008 is multiple-walled insulating units of glass, which are widely used in the construction of windows, doors, and other architectural elements. These insulating glass units are often consumed by industries such as 4401 Building and Construction, 4402 Furniture, and 4403 Automotive, where they play a crucial role in enhancing energy efficiency, thermal comfort, and acoustic performance.

Family tree for glass; multiple-walled insulating units of glass

    graph LR
    A["<a href='/classifications/hs/v2022/70'>70: Glass and glassware</a>"]
A --> B["<a href='/classifications/hs/v2022/7008'>7008: Glass; multiple-walled insulating units of glass</a>"]

    A --> C["<a href='/classifications/hs/v2022/7001'>7001: Glass; cullet and other waste and scrap of glass, excluding glass from cathode ray tubes or other activated glass of heading 85.49, glass in the mass</a>"]
A --> D["<a href='/classifications/hs/v2022/7002'>7002: Glass in balls (other than microspheres of heading no. 7018), rods or tubes, unworked</a>"]
A --> E["<a href='/classifications/hs/v2022/7003'>7003: Glass; cast glass and rolled glass in sheets or profiles, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked</a>"]
A --> F["<a href='/classifications/hs/v2022/7004'>7004: Glass; drawn glass and blown glass, in sheets, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked</a>"]
A --> G["<a href='/classifications/hs/v2022/7005'>7005: Glass; float glass and surface ground or polished glass, in sheets, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked</a>"]
A --> H["<a href='/classifications/hs/v2022/7006'>7006: Glass of heading no. 7003, 7004 or 7005, bent, edge-worked, engraved, drilled, enamelled or otherwise worked, not framed or fitted with other materials</a>"]
A --> I["<a href='/classifications/hs/v2022/7007'>7007: Safety glass, consisting of toughened (tempered) or laminated glass</a>"]
A --> J["<a href='/classifications/hs/v2022/7009'>7009: Glass mirrors; whether or not framed, including rear-view mirrors</a>"]
A --> K["<a href='/classifications/hs/v2022/7010'>7010: Carboys, bottles, flasks, jars, pots, phials, ampoules, containers of glass of a kind used for the conveyance or packing of goods; preserving jars of glass; stoppers, lids and other closures of glass</a>"]
A --> L["<a href='/classifications/hs/v2022/7011'>7011: Glass envelopes (including bulbs and tubes), open and glass parts thereof, without fittings, for electric lamps and light sources, cathode-ray tubes or the like</a>"]
A --> M["<a href='/classifications/hs/v2022/7013'>7013: Glassware of a kind used for table, kitchen, toilet, office, indoor decoration or similar purposes (other than of heading no. 7010 or 7018)</a>"]
A --> N["<a href='/classifications/hs/v2022/7014'>7014: Signalling glassware and optical elements of glass (other than those of heading no. 7015), not optically worked</a>"]
A --> O["<a href='/classifications/hs/v2022/7015'>7015: Clock, watch and similar glasses, glasses for non-corrective or corrective spectacles, curved, bent, hallowed etc, not optically worked; hollow glass spheres and their segments for manufacture</a>"]
A --> P["<a href='/classifications/hs/v2022/7016'>7016: Glass; paving blocks, slabs, bricks, tiles etc, of pressed, moulded glass, whether or not wired, glass smallwares for decorative purposes leaded lights and the like; multicellular or foam glass</a>"]
A --> Q["<a href='/classifications/hs/v2022/7017'>7017: Laboratory, hygienic or pharmaceutical glassware, whether or not graduated or calibrated</a>"]
A --> R["<a href='/classifications/hs/v2022/7018'>7018: Glass beads, imitation pearls, precious or semi-precious stones and similar glass smallwares, statuettes and other ornaments of worked glass; glass microspheres not exceeding 1mm in diameter</a>"]
A --> S["<a href='/classifications/hs/v2022/7019'>7019: Glass fibres (including glass wool) and articles thereof (e.g. yarn, rovings, woven fabrics)</a>"]
A --> T["<a href='/classifications/hs/v2022/7020'>7020: Glass; articles n.e.c. in chapter 70</a>"]

    B --> U["<a href='/classifications/hs/v2022/700800'>700800: Glass; multiple-walled insulating units of glass</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight