1：Boiler Pipe.ASTM A335 P5,P9,P11,P22,P91,P92 Etc.

Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-temperature Service

2：Line Pipe（API 5L Gr.B X42 X52 X60 X65 X70 Etc）

Seamless Pipeline usus est pro qualitate onerariam oleum, vapor et aqua e terra ad oleum et gas Industry conatibus per Pipeline

3：Oleo & Casing Pipe（API 5CT J55,K55,N80,L80,P110, Etc.

PETROLEUM et naturalis gas industries -- Chalybis fistulae ad usum ut armaturae et ad puteos Tubing

4：Seamless chalybe tubes for mechanica construction(GB/T8162 42CrMo,EN10210 S235GRH,EN10219 S355JOH)

Maxime usus est ad mechanicam seamless fistulam ferream, fistulam carbonii et fistulam mechanicam mixturam.

5：Boiler Superheater Calor Exchanger Alloy Pipes TubesASME SA179/192/210/T11/T22/T91）

Seamless Alloy Steel Pipes Ferritic and Austenitic For boiler Superheater heat Exchanger Alloy Pipes tube