<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="//www.optimum-spring.com/sitemap.xsl"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<lastmod>2026-04-22T14:41:59+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>1.0</priority>
<loc>https://www.optimum-spring.com/</loc>
</url>
<url>
<lastmod>2026-04-03T13:24:26+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/busbar-connection</loc>
</url>
<url>
<lastmod>2026-03-19T15:03:59+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/downhole-drilling</loc>
</url>
<url>
<lastmod>2026-04-16T15:46:00+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/electrolyzers-and-fuel-cells</loc>
</url>
<url>
<lastmod>2026-04-16T13:40:47+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/flange-bolting</loc>
</url>
<url>
<lastmod>2026-04-13T11:06:11+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/force-or-load-or-torque-limiter</loc>
</url>
<url>
<lastmod>2026-04-16T15:55:54+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/propeller-shaft</loc>
</url>
<url>
<lastmod>2026-04-16T16:03:07+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/pump</loc>
</url>
<url>
<lastmod>2026-04-03T13:33:20+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/spring-applied-disc-brake</loc>
</url>
<url>
<lastmod>2026-04-16T16:06:49+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/spring-starter</loc>
</url>
<url>
<lastmod>2026-04-03T13:35:39+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/valve</loc>
</url>
<url>
<lastmod>2026-04-09T16:13:11+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/company-overview</loc>
</url>
<url>
<lastmod>2026-04-03T10:33:09+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/our-history</loc>
</url>
<url>
<lastmod>2026-04-17T14:23:06+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/facility-overview</loc>
</url>
<url>
<lastmod>2026-04-23T09:50:10+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/spindle-tool-clamping</loc>
</url>
<url>
<lastmod>2026-04-17T14:24:07+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/about-us</loc>
</url>
<url>
<lastmod>2026-03-23T10:35:32+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/contact-us</loc>
</url>
<url>
<lastmod>2026-03-24T09:18:23+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/inquiry</loc>
</url>
<url>
<lastmod>2026-04-20T14:25:07+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/info/</loc>
</url>
<url>
<lastmod>2026-04-17T15:29:39+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/products</loc>
</url>
<url>
<lastmod>2026-04-22T16:43:05+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/blog/</loc>
</url>
<url>
<lastmod>2026-03-18T11:09:54+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/disc-spring-din2093-en16983/</loc>
</url>
<url>
<lastmod>2026-03-18T11:16:15+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/flange-bolting-belleville-washer/</loc>
</url>
<url>
<lastmod>2026-03-18T11:29:24+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/ball-bearing-disc-springs/</loc>
</url>
<url>
<lastmod>2026-03-18T11:29:41+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/serrated-safety-washer/</loc>
</url>
<url>
<lastmod>2026-03-18T11:30:31+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/nfe25511-french-serrated-spring-washer/</loc>
</url>
<url>
<lastmod>2026-03-18T11:30:51+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/trep-french-spring-washer/</loc>
</url>
<url>
<lastmod>2026-04-13T11:35:51+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/conical-spring-washer/</loc>
</url>
<url>
<lastmod>2026-04-17T16:13:43+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
<loc>https://www.optimum-spring.com/din-6796-spring/</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:43+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/disc-spring-din2093-en16983/din-2093.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:43+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/disc-spring-din2093-en16983/stainless-steel-disc-spring.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:43+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/disc-spring-din2093-en16983/high-temperature-disc-spring.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:43+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/ball-bearing-disc-springs/ball-bearing-disc-spring.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:43+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/disc-spring-din2093-en16983/valve-disc-spring.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/flange-bolting-belleville-washer/h13-flange-bolting-belleville-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/flange-bolting-belleville-washer/17-7ph-flange-bolting-belleville-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/flange-bolting-belleville-washer/15-7ph-flange-bolting-belleville-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/flange-bolting-belleville-washer/inconel-x718-flange-bolting-belleville-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/flange-bolting-belleville-washer/inconel-x750-flange-bolting-belleville-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/din-6796-spring/din-6796-heavy-duty-bolt-spring-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/conical-spring-washer/high-temperature-conical-spring-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/conical-spring-washer/stainless-steel-conical-spring-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/serrated-safety-washer/serrate-safety-washer.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/nfe25511-french-serrated-spring-washer/nfe25511-french-serrated-spring-washers.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/trep-french-spring-washer/trep-french-spring-washers.html</loc>
</url>
<url>
<lastmod>2026-04-22T06:18:44+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/info/high-pressure-steam-safety-valve-with-disc-spr-103470118.html</loc>
</url>
<url>
<lastmod>2026-04-25T09:15:05+08:00</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
<loc>https://www.optimum-spring.com/info/torque-limiter-with-belleville-spring-103476248.html</loc>
</url>
</urlset>