AGS的简单介绍100 SeriesAGS的详细信息◎ One-piece body construction ◎ Two-stem design: thread hardened upper stem and smooth surface hardened lower stem ◎ Upper stem thread lubricant isolated from system media ◎ Safety back seating seal in fully open position ◎ Panel mounting available as an option ◎ Steady and durable fastening of the handle by double lock-pins ◎ Handle of different colors available for option |