The 6 Documents to Demand From an Oil-Free Compressor Supplier Before You Wire the Deposit
Before wiring a deposit for an oil-free screw compressor, demand six documents: an independent performance test report, an exact-model ISO 8573-1 Class 0 purity report, a leakage-rate verification, a signed declaration of conformity, factory test records with a witnessed protocol, and serial-number traceability with calibration certificates. Verify every document at its issuing source, not by […]