... gaskets(RTJ) in China, including octagonal and oval gaskets with R, RX, BX, IX series, which are widely ... certified API and ISO9001:2000, therefore, our products comply with ASME B16.20 standard and API spec 6A .Moreover, ... that your email will receive our immediate attention. we look forward to our cooperation.It's very much appreciated if ... Huahai Sealing Co.,LTD Lens Metallic Gasket with API