Sichuan Elune Glass Tube Co., Ltd. is a self-publishing company. Good price, professional service, fast delivery! A 100 for product quality guarantee leads to a growing market. Give us the opportunity to work together to reach a larger product market. our products: Glass Tube Level Indicator, Klinger Gauge Glass, Tubular Gauge Glss, Boiler Sight Glass Valves, Tank Sight Gauge, Gauge Glass In Boiler, Gauge Level Glass, Gauge Glass Assembly, Flange Mounted Sight Glass, Transparent Level Gauge Glasses