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Saudi Arabia cut petroleum production is 7 trillion US dollars may affect the price of groove bearing
News 67Days Ago (04-12)Strict production discipline by OPEC and its partners is the #1 reason why oil prices have managed to stage a remarkable recovery and stay relatively high after plunging to historical lows in 2020. Early this month, oil prices reacted positively after OP... -
Nano zinc sulfide takes us into the tiny world
News 102Days Ago (03-08)Nano zinc sulfide has specific optical, electrical, magnetic, thermal, acoustic, mechanical, chemical and biological properties, and are widely used in industrial and civilian fields. The continuous development of Nano zinc sulfide preparation technology...
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