Working channel
Use the form on this page. Drawings can follow after first contact. A personal mailbox screenshot does not replace the required fields.
Polycarbonate Tube Sourcing inquiry
Send the brief in writing. We publish no street warehouse, no phone number and no promised reply clock. After a readable request we contact factories; availability still needs their confirmation.
What we read first
Product wording, quantity by configuration, destination, and the axes when you have them: inner and outer diameter, wall thickness, service temperature, length and grade documents.
Written hours
Briefs are reviewed on US business weekdays. That is a reading window, not a service-level promise. Missing fields stay visible.
Procurement form
Name, work email and requirements are required. Optional budget (currency and per-unit or whole-order) and supplier preference merge into the same requirements field when JavaScript is on.