He tau hou e kawe ana i te timatanga hou. Tienjin Zhengneng Ahumahi Co., Ko Ltd. he umanga ngaio te whakauru i te hanga paipa, hoko me te kaweake. Kei roto i nga hua matua a te kamupene, he pipehua kohua, he paipa huakore, nga paipa hinu me nga putorino hanganga.
Kei te kaha a Zhekengng Pikire ki te whakarato i te kaupapa pono me te whai kiko ki nga kaihoko me nga hoa mahi huri noa i te umanga a te hinu, te miihini, te umanga me te umanga taputapu. Kua hokona nga hua ki te tonga o Ahia, te Middle East, Amerika ki te Tai Tokerau, Amerika ki te Tonga.
I tenei ra ka whakaputa i nga hua matua a o maatau kamupene. Ko nga hua matua a o maatau kamupene ko: Piper paipa mo te 40%; Raina Pikitia mo te 30%; Pūkete pretchemical mo te 10%; He pūkete ngongo ext mo te 10%; Pūkete paipa miihini mo te 10%.
Nga rauemi matua ko:
1.Pipe pi40%
Astm A335/ A335m-2018: P5, P9, P11, P12, P22, P91, P91, P92;GB / T5310-2017: 20g, 20mng, 25mng, 15mog, 12mog, 12mog, 15CRog, 12cr2Gg, 12cr2Mog;ASME SA-106/ Sa-106m-2015: Gr.B, CR.C; Astma210 (A210m) -2012: Sa210gragrand, Sa210 Grc; Asme Sa-213 / Sa-213m: T11, T12, T22, T23, T23, T91, P92, T5, T9, T9, T21; GB / T 3087-2008: 10 #, 20 #;
2.Raina Raina30%
API 5L: PSL 1, PSL 2;
3.Putorino petrochemical10%
GB9948-2006: 15mog, 20mog, 12mog, 12mog, 12cormag, 12cr2mog, 12gr2g, 20G, 20g, 20mng; GB6479-2013: 10, 12, 12cromo, 15crmmo, 12cr2mno, 12cr2mn, 12mowvnb, 12simovn b; GB17396-2009: 20, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45
4.Whakapaahia te ngongo10%
Asme Sa179 / 192/210/213: Sa179 / Sa192 / Sa210a1.
Sa210c / T11 T12, T22.T23, T91. T92
5.Putorino miihini10%
GB / T8162: 10, 20, 35, 45, Q345, 42CMO; Astm-A519: 1018, 1026, 8620, 4130, 4140; En10210: S235grhs275Johs275j2H; Astm-A53: Gr.A Gr.B