The welded metal bellows mechanical seal is largely used for the axial seal of hot oil pump in refinery.

焊接金属波纹管机械密封主要用于炼油厂热油泵的轴封。

youdao

With over 25 years of accumulative experience, Orion is able to assist you in your precious metal electroplating, enamels and precious metals refinery need.

奥安拥有超过25年积累经验，能帮助您的贵重金属电镀、搪瓷和贵金属回收的需要。

youdao

Remedial work at Rho posed all the usual challenges that go with dismantling an oil refinery and ridding the site of hydrocarbon and metal residuals.

ECONOMIST: Urban regeneration