https://alephindia.in/isi-product/tool-and-die-steels-is-3748-1990.php
Check the Complete Procedure to Get BIS Certification for Tool and Die Steels Under IS 3748:1990 by Aleph INDIA, Documents Required & Step-by-Step Guidance
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https://www.efunda.com/materials/alloys/tool_steels/list_tool.cfm?m=ais&Page_Title=AISI%20Type%20W%20Tool%20Steels&SC=tool&ID_Low=AISI_W
eFunda: Listing of AISI Type W Tool Steels
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Tool Steels(Including Hot Work Tool Steel Supplier, Cold Work Tool Steels, Plastic Mold Steels Manufacturers/ Suppliers - Huangshi Smooth Industry and Trade...
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https://www.admiralsteel.com/
Specializing in High Carbon Spring, Strip, & Alloy Steels. We also stock a complete line of low carbon bars, shapes, and structural steels, tool steels,...
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