Tee is the connecting piece of Pipe Fittings and pipes. Tee is usually used in the branches of main pipe. It includes straight tee and Reducing Tee. The pipe end of straight tee has same size. The main pipe of reducing tee has same size, but the size of branch pipe is smaller than the main pipe.
Standards:ASME B16.9-2007,ASME B16.25-2007,ASME B16.5-2007,EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008
Wall Thickness:sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s
Materials:
carbon steel: ASTM/ASME A234 WPB-WPC
Industrial processes:bending,squeezing,pressing,forging,machining and more
Applications:Our pipe Tees are widely used in many industries,such as petroleum,power generation,natural gas, chemicals, shipbuilding, papermaking and metallurgy,and so on.
Steel Tees,Carbon Steel Tee,Seamless Pipe Tees,Reducing Tee HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , http://www.zifengpipeline.com
Cabbage has strong adaptability to soil, but requires fertile, ventilated drainage, loam with good fertilizer and water retention. It is suitable for neutral soil and has certain adaptability to slightly acidic and slightly alkaline soils. Cabbage has strong salt tolerance and can still form balls on saline-alkali soil with a salt content of 0.75%-1.2%. In the early stage of growth, nitrogen fertilizer is the main factor, and a certain amount of phosphorus and potassium fertilizer is needed in the late growth stage. Cabbage should be rotated with melons, beans, and solanaceous vegetables. It must not be used in conjunction with cruciferous vegetables to prevent serious diseases.
(2) Fertilizer dynamics: Cabbage is a fertilizer-fertilized crop, and the absorption of soil nutrients is greater than that of ordinary vegetables. The dynamics of fattening during seedling, rosette and heading were the same as those of Chinese cabbage. In the first half of the growth period, the absorption of nitrogen was more, and reached the peak during the rosette period. Leaf ball formation has more absorption of phosphorus, potassium and calcium. The ball-forming period is a period in which a large amount of nutrients are absorbed. In this period, nitrogen, phosphorus, potassium and calcium can account for 80% of the total fertility absorption. After planting, the absorption of nitrogen, phosphorus and calcium reached a peak around 35 days, and the absorption of potassium reached a peak around 50 days. Generally, it absorbs more nitrogen, potassium and calcium, and has less phosphorus. The production of 1000 kg of cabbage requires about 3.0 kg of nitrogen, 1.0 kg of phosphorus, and 4.0 kg of potassium, in a ratio of 3:1:4. Therefore, on the basis of the application of nitrogen fertilizer, phosphorus, potassium and calcium fertilizers should be applied to make the ball tight and the clean vegetable rate is high.
SH/T3408-1996 SH/T3409-1996,SY/T0609-2006 SY/T0518-2002 SY/T0510-1998 ,DL/T695-1999 GD2000 GD87-1101,HG/T21635-1987 HG/T21631-1990
SIZE
seamless size: 1/2"~24"(DN15~DN600)
welding size: 4"~78" DN150~DN1900
stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel: ASTM/ASME A402 WPL 3-WPL 6
High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70
(1) Root fat absorption characteristics: Cabbage is a shallow root crop. The root has a main root, a lateral root and a developed root hair. Most of the entire root system stretches over the topsoil of 25 cm or more. Young roots have a strong ability to regenerate. Therefore, it is suitable for transplanting.
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