Johnson wedge wire screen 1. Material: stainless steel (304, 316) 2.Slot size ... . Johnson wedge wire screenThe continuous slot wire-wrap screen is used throughout the world for water, oil, ... for environmental well completions. It is the dominant screen type used in the water well industry. this ... 25, 0.30…… 6.00mm also achieved upon request. Material:galvanized low carton (LCG), stainless steel (304,316 ...