This is a B2B buying guide, not a conformity certificate or a substitute for importer and authority review of the exact SKU.
Start with construction, not finish
Two valves can look identical and carry different body alloys, cartridges and machined dimensions. Ask suppliers to identify the quoted model and material basis before comparing chrome or PVD finishes.
Make the thread explicit
Write the inlet and outlet sizes and thread standard on every RFQ line. Approve a drawing or physical reference so a familiar-looking thread does not become a site-level mismatch.
Compare test evidence by model
A generic laboratory logo is not enough. Check the report identity, model coverage, test method, sample basis and applicant. Market approval may be held by the importer and must be mapped before shipment.
Turn the guide into an RFQ.
Send the market, quantity, reference product, specification and required documents. We will turn them into a quotation-ready question list.
Request a quotation
