1. All components are high and long lifetime,some from well-known manufacturers.

2. All the products got the ISO9001,CE,SGS certificate.

3. All the products have long lifetime.

Our service of rubber o ring box:

1. Your inquiry related to our products or price will be will be replied within 24 hours.

2. Well-trianed and experienced staff to answer all your inquirys in fluent English.

The detailed pictures of rubber o ring box:

Our corporation's certification:

Winning projects:

If you want to ask me for more informations, please contact me:

QTD aims to provide customers with the best products and best service, looking forward to cooperate with you.

If any help you need from us, please inform me without hesitation.