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upn
198 Products|46 Suppliers
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Galvanized Sheet Material c channel U channel/upn/steel channelUS$ 650 - 950MOQ: 20 TonsWuxi Su Guang Cold Steel Co., Ltd. -
HIGH QUALITY MS HOT ROLLED STEEL CHANNEL upnNegotiableMOQ: 50 Metric TonsTangshan Dinghe Technology Co., Ltd. -
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Choose suppliers with platform-verified icons for trusted status2Verify CertificationsValidate supplier certifications (ISO, CE, etc.) for upn compliance3Sample Testing FirstAlways test product samples before large orders4Visit FactoriesConduct on-site audits for manufacturing verification5Payment TermsUse escrow services for high-value transactions6Contract ClarityDefine penalties for delays/spec deviations in upn contracts -
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