Tšitoe 2020, TH-Valve Nantong e atlehile ho hapa tefiso ea likarolo tse hlano tsa Sinopec's 2021-2022 selemo le selemo sa 2021-2022

Likarolo tse 5 li kenyelletsa:

1) Karolo ea ho Hloekisa: Maemo a Amerika> Khatello e Bohareng> Bohareng le Bonyane Caliber> Tšepe ea Carbon;

2) Karolo ea ho Hloekisa: Maemo a Amerika> Khatello e Bohareng> Caliber e kholo> Tšepe ea Carbon;

3) Karolo ea ho Hloekisa: American Standard> Medium Pressure> Stainless Steel, Alloy steel;

4) Karolo ea ho Hloekisa: Tekanyetso ea Sechaena> Khatello e Bohareng;

5) Karolo ea Tšimo ea Oli: Bohareng le Bonyane Caliber> Tšepe ea Carbon,Stainless Steel, Alloy Steel.