The rated temperature range of the nitrile rubber seat is -18 ℃ ~ 100 ℃. Also commonly called NBR, NITRILE, or HYCAR. It is an excellent general purpose rubber material suitable for water, gas, oil and grease, gasoline (except gasoline with additives), alcohol and glycol, liquefied petroleum gas, pr......

The company has various large processing equipments, like 3.5meter vertical lathe, 2000mmx4000mm boring-milling machine. And we have multiple large-scale testing equipments for valve performance, physical properties and chemical analysis.（China ball valve)