Wenzhou Huahai Sealing Co Ltd
We are professional in Ring Joint Gasket，which was developed for use in the petroleum industry , high pressure ,high temperature applications necessitated the need for a high integrity seal. They are mainly used in the oilfield on drilling and completion equipment. They also used in gate valve, Christmas tree, pipework assemblies , flange. We have API 6A and ASME B16.20 to suit API 6B and ASME B16.5 flanges.