The loss of these cells is followed by the degeneration (atrophy) of the optic nerve. X-linked optic atrophy type 2 is caused by mutation in the OPA2 gene with cytogenetic location Xp11.4-p11.21. The patient presents with early-onset childhood vision loss with slow progression of loss.
Metal Seals. More Products Â» Metal Seals. Munaco Sealing Solutions, Inc. provides numerous variations of metal seals like metal O-Rings, metal C-Rings, metal E-Rings, Spring-Energized metal seals, metal U-Rings, and metal V-Rings. Munaco's unique experience helps to provide some of the most efficient metal sealing technologies available.
The PSS Shaft Seal is the best selling watercraft mechanical seal in the boating industry and is established as standard operating equipment by the top expert ship builders and ship yards.he nitrile O-Rings are put inside the stainless steel rotor to guarantee alignment and seal of the rotor to prop shaft. Nitrile is the material used due to its superior resistance to petroleum products, temperature variations and resistance to tearing. These O-rings are fixed and do not wear.