black o ring oil seal custom china manufacturer

Gemmy Sealing Materials Co., LTD. Whatsapp/WeChat: 8613722605656 gemmyheart@ Welcome to : Langfang Gemmy Sealing Materials Co., LTD. All products support customization, if you have sealing, heat preservation, fire resistance technical problems welcome to consult. Main products and business items: Sealing gasket manufacturing and marketing, sealing packing, packing, glass fiber and ceramic fiber, fire-resistant sealing materials and heat preservation materials manufacturing and marketing; Graphite and carbon products, asbestos products manufacturing sales. Import and export of goods and technology.