Specifications:
The document details a range of striking face ring spanners available in both inch and millimeter sizes. The sizes range from 15/16 inch to 2 inches, with corresponding weights and dimensions provided. The spanners are hot forged by skilled craftsmen, ensuring durability and precision.

Procedures:
To use the spanner, thread a rope through the hole of the handle and pull it in the tightening direction while hammering the striking surface. This method ensures effective tightening.

Norms and Standards:
The spanners undergo cathodic electrodeposition for enhanced corrosion resistance. This process is mentioned twice, indicating its importance in the manufacturing process.

Recommendations:
The document suggests a wide variety of sizes to cater to different needs, emphasizing the product's versatility. Special orders can be made for sizes not listed.

Key Data from Tables:
The tables provide detailed measurements and weights for each spanner size, highlighting the product's specifications. For example, the weight for sizes 15/16 inch to 2 inches ranges from 340g to 1,330g.

Manufacturer Information:
Asahi Metal Industry Co., Ltd. is the manufacturer, with contact details provided for the export department located in Osaka, Japan.