Reducing tee (reducing tee) : branch pipe with other two different diameter known as reducing tee. Both ends of the same diameter, called equal tee (equal tee). Reducing tee is widely used in petrochemical, oil and natural gas, liquefied gas, fertilizer, power plant, nuclear power, shipbuilding, papermaking, pharmaceutical, food sanitation, urban construction industries of engineering construction and maintenance. Material generally is 10 # # 20 A3 Q235A 20 g 20 g 16 mn ASTM A234 ASTM A105 ASTMA403, etc. Wall thickness level for: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS. Tee can be used in a variety of industries, in different types can be divided into the following categories: 1. The method to make division can be divided into the system, pressing, forging, casting, etc. 2. In order to make the classification can be divided into the national standard, the electric standard, water standard, American standard, Germany standard, Japanese standard, the standard and so on.