• December 25, 2017

D&S Trading Co.,Ltd. is professional machine trading company, which respresative for our relative factorys.We supply you first class quality machine with best service. Our machine include all faucets, valve, brass fitting, cartridge, brass parts, teflon tape machines.For more information,welcome to visit our company's website http://www.desuautomatic.com The ...

• January 05, 2018

D&S Trading Co.,Ltd. is professional machine trading company, which respresative for our relative factorys.We supply you first class quality machine with best service. Our machine include all faucets, valve, brass fitting, cartridge, brass parts, teflon tape machines.For more information,welcome to visit our company's website http://www.desuautomatic.com Teflon tape (commonly known as Barka) i...

• January 05, 2018

D&S Trading Co.,Ltd. is professional machine trading company, which respresative for our relative factorys.We supply you first class quality machine with best service. Our machine include all faucets, valve, brass fitting, cartridge, brass parts, teflon tape machines.For more information,welcome to visit our company's website http://www.desuautomatic.com Composite processing as one o...

• November 29, 2018

D&S Trading Co.,Ltd. is professional machine trading company, which respresative for our relative factorys.We supply you first class quality machine with best service. Our machine includeall faucets, valve, brass fitting, cartridge, brass parts, teflon tape machines.For more information,welcome to visit our company's website http://www.desuautomatic.com The machine is industrial tools, is used...

• November 29, 2018

D&S Trading Co.,Ltd. is professional machine trading company, which respresative for our relative factorys.We supply you first class quality machine with best service. Our machine include all faucets, valve, brass fitting, cartridge, brass parts,brass bar cutting machine, teflon tape machines. For more information,welcome to visit our company's website desuautomatic.com Machine Tool Industry T...

• August 05, 2020

D&S Trading Co.,Ltd. is professional machine trading company, which respresative for our relative factorys.We supply you first class quality machine with best service. Our machine include all faucets, valve, brass fitting, cartridge, brass parts,brass bar cutting machine, teflon tape machines. For more information,welcome to visit our company's website desuau...

• January 20, 2021

Brass bars are rod-shaped objects made of copper and zinc alloys. They are named for their yellow color. Brass has good mechanical and wearing resistance, and can be used to manufacture precision instruments, ship parts, shell of guns, etc. Our machine could cut many kinds of products. DN32,DN50,DN60 etc. More information, welcome to contact D&S Automatic Co.,Ltd.

• June 03, 2021

At present, more than 80% of copper in the world is made by fire method, and it is mainly used to process copper sulfide ore. Pyrometallurgy is to melt copper ore (or calcine, agglomerate, etc.) and flux at high temperature, or directly smelt into blister copper, or first smelt into matte (melt mainly composed of copper, iron and sulfur) Then smelt into blister copper. Except for some operations (...