We are specialized manufacturer of different kinds of sight glass ,gauge glass and related gasket in China.our products have been exported to Pakistan, Poland, Croatia, Malaysia, USA, Syria, Vietnam, Netherlands, UK, Bulgaria and so on. And we are keeping the long term cooperation relationship with our clients Our main product: 1) Reflex type Gauge glass 2)Flat type Gauge glass 3)Round type sight glass 4)Glass tube 5)Gasket for Gauge glass & sight glass 1)Gauge glass size 340 x 34(30) x 17mm; 320 x 34(30) x 17mm; 280 x 34(30) x 17mm; 250 x 34(30) x 17mm; 218 x 34(30) x 17mm; 190 x 34(30) x 17mm; 165 x 34(30) x 17mm; 140 x 34(30) x 17mm; 115 x 34(30) x 17mm The other size is optional or according to the requirements of customers. 2)Round sight glass size: Diameter: 30~350mm, thickness:10~30mm The other size is optional or according to the requirements of customers 3)Glass tube size: Outside diameter: from 3mm to 315mm.Wall thickness: from 1.0mm to 10mm.Length: from 5mm to 2200mm. Normal length: 1000mm-1800mm Such as print the words on the products, the size, and so on.