1. Single sealing ring joint		Suitable for medium & low pressure underground pipe lines
2. Double sealing ring joint		Suitable for high pressure underground pipelines. Pressure test is possible on single sealing ring.
3. Joint sealing compound		Suitable for high pressure & complicated loading pipelines with larger diameter.
4. Direct joint		Suitable for high , medium & low pressure pipelines and pipe fittings, depending on the usage condition
5. Joint with the "O" nylon key		Suitable for higher pressure force along the pipe.
6 Flange joint		Suitable for medium & low pressure pipelines and equipment fittings. Suitable with standard pipe components.