Welding fixed bearing, hanger / holes pipe clamps, hangers / Ruihai pipeline supply, Contact:? Lee, Tel: 0317-6395321,13393375568, QQ: 1335947599, URL: www.czrhgd.com company Name: Hebei Ruihai Pipe Manufacturing Co., Ltd. Address: Hebei Yanshan south zone, Company Name: Hebei Ruihai Pipe Manufacturing Co., Ltd. Address: Hebei Yanshan south zone, GB / T210-1995 this standard Products applicable to all types of vessels wind pipe ventilation system fixed. This standard by the Jiangnan Shipyard editor. 1 type, parameters and basic dimensions 1.1 duct hanger types and parameters in Table 1. Table 1 Type Name Applicable duct nominal diameter DN Mm AF diabatic circular spiral duct hangers 80 ~ 400 AY pre-adiabatic circular spiral Duct hanger