Antique Vintage Chinese Teapot Steel Jade Top Asian

Description

Found at an estate sale from a couple who traveled to Asia frequently to collect vintage and antique chinese porcelain and jade, not sure of age and material. Top looks to be made of jade.
Inside top is warped. Vintage condition.
Marked china on bottom. Approx 00s-20s?
We’re not antique experts so selling as is! Please ask all questions prior to buying.