... 2, Q:What’s your main products ?A: Our products is water softeners, control valves, RO water purifiers, housing filters ,all kinds of ... and balance payment will be done against the Copy of B/LL/C payment is also available6, Q: Can I ... mail.If you have any questions about our products ( water softener, control valves, RO water purifier, Residential reverse osmosis machine ) or our service, please ...