On December 11, the acetylene production plant of the 100,000-ton/year 1,4-butanediol expansion project of Shaanhua Chemical Group of Shaanhua Chemical Group succeeded in driving the material and successfully produced the qualified acetylene gas through the process, which laid the foundation for the trial run in the subsequent stage. . In addition to 100,000 tons/year of 1,4-butanediol, this project also supports a polytetrahydrofuran plant of 46,000 tons/year. The picture shows the company's employees debugging the acetylene compressor. (Reporter Li Jun photo) Lasers And Lights,Uses Of Laser Lights,Nlight Lasr,3 Laser Light Wavelength Ranges Nantong Dinggo Optical Instrument Co.,Ltd , https://www.focuhunterequip.com