Mavavu othamangitsa amapereka ndalama 4 kutengera mavavu 4, amakumana ndi mavuto osiyanasiyana, kutentha, cv ndi kulumikizana.
Nyama za Roichlok zopindika zimapereka mphamvu yolondola mu ntchito zambiri.
Max. Kugwira Ntchito Kukakamiza kwa MV1 Plaing Valve ndi 2000 psig (137 bar). Tsipi lake la tsinde ndi 1 °. Ili ndi mapangidwe anayi owongoka, ngodya, mtanda ndi kawiri, zitatu zolumikizira, zopindika.
Max. Kugwira Ntchito Kukakamiza kwa MV2 Milandu Kukula Veterve ndi 1000 psig (68.9 bar). Tsipi lake la tsinde ndi 3 °. Ili ndi mapangidwe anayi owongoka, ngodya, mtanda ndi kawiri, ziwiri zolumikizira ndi vernier.
Max. Kugwira Ntchito Kukakamiza kwa MV3 Prezing Veruve ndi 1000 Psig (68.9 bar). Tsipi lake la tsinde ndi 5 °. Ili ndi mawonekedwe awiri owongoka ndipo ngodya ziwiri, zibwenzi ziwiri za KRUREDER ndi Vernier.
Max. Kugwira Ntchito Kukakamiza kwa MV4 Miesting valavu ndi 5000 psig (344 bar). Tsamba lake la tsinde ndi 2 °. Ili ndi mawonekedwe awiri owongoka ndipo ngodya imodzi.
Yimbandi amodzi mwa akatswiri opanga ziwonetsero za mavavu ndi zolimba ku China.Kusankha kwapang'onopang'ono ndikuyesa, kugwiritsa ntchito ukadaulo wapamwamba kwambiri, njira yosalala yopangira komanso kupanga akatswiri opanga maluso ndi kuyeserera kwa ogwira ntchito, akupanga mazana ambirimavuvundimatima. Ndisankho labwino kwambiri pakugula kwanu, kusunga nthawi ndi mphamvu.
Pambuyo pazaka zoyesayesa, raiselok yakhala othandizira makasitomala odziwika monga a Sinopec, Petrochina, CYOOC, GYARROM, ROSPOMES, RORALICE NDI GLOFT NDIPONSO ZOTHANDIZA. Vadilok yapambana mamaument ochokera kwa makasitomala chifukwa chaKatswiri Woyang'anira, ukadaulo wokhwima ndi utumiki wokhazikika.
