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Use a metric screw sizes chart without missing finish assumptions. Learn what to specify so your sheet metal RFQ quotes assembly-ready parts.
See why a sub arc welding prototype can pass while production lots fail fit-up, and request a project review before you issue the RFQ for your batch.
Missing type of metal in an RFQ can distort quotes and inspection. Learn how to tighten material callouts before your next project review or RFQ.
Learn how oxidation of copper can change quotes, masking, and inspection for custom parts, enclosures, and weldments. Request a project review.
A China-based custom metal manufacturer supporting OEM and ODM projects from drawing review and samples to fabrication, finishing, assembly and repeat production.
ISO 9001
RoHS
26+ Years
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Liancheng Building, No. 21 Deyuan South Rd, Lane 12, Jidongyi, Xiaolan, Zhongshan, Guangdong, China
© 2026 Yishang Metal Products Co., Ltd. All rights reserved.
If you have any questions or need a quote, please send us a message. One of our specialists will get back to you within 24 hours and help you select the correct valve for your needs.
All of our products are available for sampling