# 中国から配管部品を見積依頼する方法\n\n## B2Bバイヤー向けガイド\n\n本記事は、海外の技術購買、施工会社、販売代理店、OEM/ODM顧客が、見積依頼前に必要な技術情報を整理できるように作成されています。\n\n## 配管部品: 中国から配管部品を見積依頼する方法\n\n製品名だけで判断せず、配管サイズ、圧力、接続規格、材質、流体、温度、設置位置、数量、図面を確認してください。\n\n関連製品にはゴム伸縮継手、伝力継手、管継手、フランジアダプター、金属ベローズ伸縮継手、防水スリーブなどがあります。\n\n## RFQ\n\n見積を早く正確にするには、DNサイズ、圧力等級、フランジ規格、材質、使用流体、温度、数量、図面または写真を送ってください。\n\n- DN / size\n- pressure rating\n- connection standard\n- material\n- working medium and temperature\n- quantity\n- drawing, photo or specification\n\n## Quality and Packing\n\n出荷前には外観、寸法、接続面、付属部品、表示、梱包方法を確認します。試験要求は生産前に確認してください。\n\n## Project Inquiry\n\nプロジェクト用の配管部品が必要な場合は、サイズ、圧力、接続規格、材質、流体、数量、図面をお送りください。
常见问题
?What is the minimum information required in a pipeline product RFQ?
Provide the product name, size, quantity, installation position, medium, temperature, pressure, connection type, flange standard, installation length, destination and Incoterm. Expansion products also require movement direction and movement amount.
?How can I request a quotation when I do not know the exact product name?
Send site photographs, an existing nameplate, piping drawings and dimensional information. Also explain the installation position, medium, pressure and end connections. A photograph alone may not identify every technical requirement.
?Why is the actual pipe outside diameter required?
Pipes with the same nominal size may have different outside diameters under different materials and dimensional standards. Flange adaptors and steel flexible couplings normally seal around the actual pipe outside diameter.
?Is it sufficient to state only FOB or CIF in an RFQ?
No. Include the named port or place, such as FOB a specified Chinese port or CIF a specified destination port. The exact location affects freight, delivery responsibility and quotation scope.
?Are drawings required for customized pipeline products?
They are strongly recommended. Non-standard installation lengths, special flanges, combined movement, special materials and rehabilitation projects usually require drawing confirmation. Drawings should include units, revision and date.
?What should be compared after receiving quotations?
Compare the product construction, materials, dimensions, connection standards, accessories, packing, delivery time, documents, inspection, Incoterm and technical assumptions—not only the total price.