Welcome to DURON Metallurgical Equipment Co., Ltd. (“DURON”). These Terms and Conditions govern all offers, quotations, sales, and deliveries of heavy-duty industrial metallurgical rolls (including hot rolling and cold rolling mill rolls), roll turning lathe tools, inserts, and related engineering services supplied by DURON to any international industrial purchaser (“Buyer”)[cite: 1]. By issuing a purchase order, accepting a quotation, or entering into a supply contract with DURON, the Buyer explicitly accepts and agrees to be bound by these Terms and Conditions.

1. Definitions and Interpretation
In these Terms, the following definitions apply:
• Company/Seller: DURON Metallurgical Equipment Co., Ltd. (the official operator of www.duronrolls.com).
• Products: Metallurgical rolls (HSS, Adamite, ICDPE, Graphite Steel, Backup/Work Rolls), heavy-duty carbide/CBN cutting inserts, and hardfacing re-manufacturing components.
• Contract: The agreement between Seller and Buyer for the sale and purchase of Products, including specific technical drawings, quality agreements, and proforma invoices.

2. Technical Specifications, Drawings, and Approvals
Given the highly customized nature of metallurgical industrial products, precision engineering is critical to prevent catastrophic in-mill failures.
1. Drawing Sign-off: Production will only commence upon mutual signed approval of final technical production blueprints. The Buyer assumes sole structural liability if the provided dimensions or steel grades conflict with actual mill housing tolerances.
2. Material Certification: Upon request, DURON provides international standard certification including Chemical Composition Analysis, Mechanical Testing (Hardness HS/HSD, Tensile Strength), Metallographic Microstructure inspection, and Ultrasonic Non-Destructive Testing (UT) signatures.

3. Quotations, Pricing, and Currency
All formal quotations issued by DURON are valid for a maximum period of thirty (30) calendar days from the date of issuance due to market volatility of scrap steel, ferroalloys (Vanadium, Molybdenum, Tungsten), and international energy surcharges. Prices are typically quoted in USD or EUR on an FOB, CIF, or CFR basis pursuant to Incoterms® 2020.

4. Payment Terms & Financial Risk Clauses
Unless alternative credit facilities are contractually authorized by DURON’s executive financial board, international B2B transactions shall strictly execute under the following structural framework:
• Standard Custom Rolls: 30% advance down-payment via T/T upon drawing confirmation; 70% balance payment prior to factory dispatch.
• Standard Machine Tooling / CBN Inserts: 100% upfront processing via T/T or Secure Digital Business Gateway for immediate dispatch from stock.

Late Payment Enforcement: Any payment delay exceeding fourteen (14) business days from the scheduled milestone grants DURON the legal mandate to halt active metallurgical casting, heat treatment, or final cylindrical grinding operations. DURON shall not be held liable for resulting scheduling chain delays or steel mill downtime.

5. Manufacturing Tolerances and Production Timelines
Metallurgical rolls undergo prolonged casting, double-pouring, multi-stage annealing, and ultra-precise machining cycles. Lead times communicate approximate windows rather than rigid legal absolute deadlines. Standard structural variance clauses include:
• Dimensional Precision: All precision grinding parameters obey agreed ISO or country-specific industrial rolling mill standard classes.
• Weight Variance: Heavy casting components accept a gross nominal mass margin variance of ±3% attributable to standard foundry shrinkage rates.

6. Limitation of Consequential Damages (The Industrial Mitigation Clause)
NOTWITHSTANDING ANY PROVISION TO THE CONTRARY, DURON’S AGGREGATE FINANCIAL LIABILITY UNDER ANY EVENT FOR BREACH OF CONTRACT, WARRANTY, OR NEGLIGENCE SHALL BE RIGIDLY CAPPED AT THE NET INVOICED PURCHASE PRICE SPECIFICALLY PAID FOR THE INDIVIDUAL PIECE OR COMPONENT DEMONSTRATING DEFECT[cite: 1]. UNDER NO JURISDICTIONAL INTERPRETATION SHALL DURON BE LIABLE FOR ANY INDIRECT, INCIDENTAL, COMPENSATORY, OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF PRODUCTION CAPACITY, MILL DOWNTIME, RE-MACHINING COSTS, OR REVENUE LOSSES SUFFERED BY THE BUYER OR THE BUYER’S END CUSTOMERS.

7. Force Majeure
Neither contracting party shall face legal defaults or breach penalties for partial or total execution failure stemming from absolute Force Majeure events. These events include extreme metallurgical power grid restrictions, catastrophic alloy material embargoes, state foundry environmental closures, maritime freight container lockouts, or warlike border hostilities.

8. Governing Law and Arbitration Jurisdiction
All contractual arrangements, technical disputes, or unpaid collections relating to DURON’s global transactions shall be evaluated under the designated legal framework:
Contract Laws: Laws of the People’s Republic of China.
Designated Dispute Resolution Authority: China International Economic and Trade Arbitration Commission (CIETAC) or local Tianjin Corporate Courts.

9. Final General Clauses
If an international judicial authority finds a specific provision within these Terms invalid, the validity of the remaining components remains entirely unaffected. All formal modifications, custom quality agreements, or side letters must be executed in writing and bear the official corporate stamp of DURON.

Corporate Legal Office: DURON Metallurgical Equipment Co., Ltd.
Web Link Registry Verification: www.duronrolls.com