niu is what the film is called on a distributor's shelf. Xuanyuan is what it is called on a certificate. Both are on the liner, because a buyer should be able to find out who actually coated the roll.
niu exists to sell one plant's output into export markets without the layers of trading company that normally sit between a coater and a distributor. The range is deliberately narrow: paint protection film as the main event, window and architectural film behind it.
Shanxi Xuanyuan New Materials Co., Ltd. — Manufacturer. A technology enterprise built around window film and paint protection film — R&D, coating and sales under one roof.
The chain matters commercially, not just for decoration: the adhesive comes from inside the group, the TPU is cast inside the group, and the coating happens on the same site. A distributor who needs a batch to behave the same way in March as it did in October is buying that chain, not the logo.
We are not going to quote you a film we do not make, and we are not going to publish an optical figure for a glass product without the glass it was measured on. Where a number belongs in a TDS, it is in the TDS. Where it belongs to a programme, it is quoted with the programme.
We would rather send a sample roll than argue about a spec sheet.
