If thimerosal mercury antimony mine antimony (HgSb 2 S 7 and HgS · 2Sb 2 S 3). Such ore beneficiation not well isolated by methods HgS and Sb 2 S 3, must hydrometallurgical or pyrometallurgical methods were recovered. Practice has proved that the fire law process is superior. Figure 1 is a U.S. patent (No. 2,186,876) which is essentially calcined at a suitable temperature in a rotary kiln to convert HgS to mercury vapor evolution, while Sb 2 S 3 is oxidized to Sb 2 O 3 for discharge from the kiln. The former Soviet Union used fluidized roasting to treat this ore, and the extraction rate of mercury and antimony could exceed 90%.

SF factory is focus on quality and company's image. We win market with good quality and service. The company has already passed International Quality Management System ISO9001:2008 certification for many years and also got the CE certificate, smoothly got the title of High and New Tech Enterprises.

 And has more than ten own intellectual property rights and patent technology. We have own import and export right. Our products exported to Russia, South Asia, South east Asia, Middle East, South America, Africa, Australia, Eastern Europe etc.


CNC Professional machine for Steel coil.

Products Mainly including:

Steel coil recoiler.

Steel coil uncoiler;

Steel coil uncoiler and shearing machine

Steel coil uncoiler and Slitting Machine;

plate punching machine;

Plate Drilling Mchine;

Beveling Machine;



Shandong SF CNC Machinery Co., Ltd. is a grand manufacturer of Transmission tower machines in china. With 23 years` experience in this line, we are committed to producing only the finest products to our customers.

In 2019, we appointed Jinan JUFU International Co.,ltd to specially export our machines to abroad markets. And now we have a special engineer team for oversea market, and we are able to offer customer timely service.

2014101152127541Coil Slitting Machine


Steel Coil Cutting & Slitting Machine

Steel Punch Machine,Steel Plate Machine,Steel Coil Slitter Machine,Steel Plate Drilling Machine

Shandong ShuoFang Environmental Technology Co., Ltd. , https://www.chinafincnc.com