Detailed Introduction to Non-Standard Chains

1. Non-standard chains are multi-purpose mechanical basic components consisting of a flexible system made of rigid members.
   They include four major series:

• Transmission chains

• Conveyor chains

• Towing/drag chains

• Special-purpose professional chains

1. A series of chain links or loops, typically made of metal, used to block traffic passageways (e.g., at street entrances, rivers, or harbor inlets). In machinery, they are used as driving chains.

Non-standard chains can be classified into:

• Short-pitch precision roller chains

• Short-pitch precision roller chains (duplicated in original text)

• Heavy-duty cranked-link transmission roller chains

• Chains for cement machinery

• Leaf chains

• High-strength chains

• High-strength chain sling assemblies

These are professionally used for engineering supporting applications, manufacturing supporting applications, production line supporting applications, and special-environment supporting applications.