Do you need the circle gold-plated metal domes? We are now also being promoted circle gold-plated metal dome. Circle gold-plated metal dome is plated gold on both sides of the metal dome, Mainly used in relatively high value of the membrane switches. Here are pictures of circle gold-plated metal domes: 
The performance of gold-plated metal dome is more stable than the ordinary metal domes, but prices are also higher. We buy materials directly from Japan, raw material with the gold-plated, so the performance and the quality is very reliable. Compare to some suppliers make metal domes first, and then plated gold, better in the gold plating with material: uniform, stable and reliable.
If you have needs of circle gold-plated metal domes, please feel free to contact us to request samples.
Dear Hello
May I know if you have an alternative to the dome whose information is shown by the following link ?
http://www.snaptron.com/part-number/sq04200/
In case alternative exists, please send me your datasheet , price, and lead time for 1000 , 5000, and 10000 units.
Your ASAP reply will be highly appreciated.
Best Regards,
Eli Aviel
Dolphin Tronics Ltd.
Tel: 972-7-77980300
Fax: 972-7-77980740
Skype: eliaviel10
97 Buzz, Karmiel 21721, Israel