Features Specifications:Sell G thread pneumatic fittings  It is the pneumatic fitting. The photo, it is the G-thread fittings. If you need, please contact me for free. The color, we can change too. If you need, we also can supply the fittings with your brand. About the quality, you can test and then make sure the quality by yourself. Some samples are free.  If you have time, welcome to our factory. You can take the sample at the workshop. I think it is much better. Waiting for your kind inquire. Best Regards! Alice Jin