Sannad cusub wuxuu keenayaa bilow cusub. Tianjin Zhengneng Pipe Industry Co., Ltd. waa shirkad xirfad leh oo isku daraysa wax soo saarka dhuumaha, iibinta iyo dhoofinta. Wax soo saarka ugu muhiimsan ee shirkaddu waxay ka kooban yihiin tuubooyinka kuleyliyaha, tuubooyinka bacriminta, tuubooyinka batroolka iyo tuubooyinka dhismaha.
Warshadaha Tuubooyinka Zhengneng waxay ka go'an tahay inay siiso macaamiisha iyo la-hawlgalayaasha adduunka oo dhan xalal mashruuc iyo hawlgal oo la isku halleyn karo oo qiimo leh, oo ay ku jiraan warshadaha kuleyliyaha, warshadaha saliidda iyo gaaska, kaydinta biyaha, macdanta, warshadaha tamarta iyo warshadaha qalabka farsamada. Badeecadaha waxaa loo iibiyaa Koonfur-bari Aasiya, Bariga Dhexe, Waqooyiga Ameerika iyo Koonfurta Ameerika.
Maanta waxaan soo bandhigi doonnaa wax soo saarka ugu muhiimsan ee shirkaddayada. Wax soo saarka ugu muhiimsan ee shirkaddayadu waa: Tuubooyinka kuleyliyaha waxay ka kooban yihiin 40%; tuubooyinka khadka ayaa ka kooban 30%; tuubooyinka kiimikada batroolka ayaa ka kooban 10%; tuubooyinka beddela kulaylka ayaa ka kooban 10%; tuubooyinka farsamada ayaa ka kooban 10%.
Agabka ugu muhiimsan waxaa ka mid ah:
1.Tuubooyinka Kuleyliyaha40%
ASTM A335/A335M-2018: P5, P9, P11, P12, P22, P91, P92;GB/T5310-2017: 20g, 20mng, 25mng, 15mg, 20mg, 12crmog, 15crmog, 12cr2mog, 12crmog;ASME SA-106/ SA-106M-2015: GR.B, CR.C; ASTMA210(A210M)-2012: SA210GrA1, SA210 GrC; ASME SA-213/SA-213M: T11, T12, T22, T23, T91, P92, T5, T9, T21; GB/T 3087-2008: 10#, 20#;
2.tuubo xariiq ah30%
API 5L: PSL 1, PSL 2;
3.Tuubo kiimiko ah10%
GB9948-2006: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 20G, 20MnG, 25MnG; GB6479-2013: 10, 20, 12CrMo, 15CrMo, 12Cr1MoV, 12Cr2Mo, 12Cr5Mo, 10MoWVNb, 12SiMoVN b;GB17396-2009:20, 45, 45Mn2;
4.tuubo isku-beddel kuleyl10%
ASME SA179/192/210/213: SA179/SA192/SA210A1.
SA210C/T11 T12, T22.T23, T91. T92
5.Tuubo farsamo10%
GB/T8162: 10, 20, 35, 45, Q345, 42CrMo; ASTM-A519:1018, 1026, 8620, 4130, 4140; EN10210: S235GRHS275JOHS275J2H; ASTM-A53: GR.A GR.B