Brass plate is a kind of widely used lead brass, which has excellent structural mechanical properties good machinability. It can undertake hot cold working pressure production processing, is used in cutting production stamping parts processing of various structural parts, such as washer, shaft sleeve, etc. Tin brass plate has high corrosion resistance, excellent structural mechanical properties, excellent processability under cold hot working pressure. It can be used for corrosion-resistant parts parts hoses touched by steam, raw oil other substances on ships.

Brass is an alloy of copper zinc. Very simple brass is copper zinc binary alloy, which is called simple brass general brass. Changing the composition of zinc in brass can obtain brass with different mechanical properties. The higher the content of zinc in brass, the higher the compressive strength the lower the plastic deformation. The zinc content of brass selected in industrial production is more than 45%, the higher the zinc content may cause ductility affect the properties of the alloy. In order to improve some properties of brass, it is called unique brass to add other alloy elements to the basic of unitary brass. The common alloy elements are silicon, aluminum, tin, lead, manganese, iron nickel. Adding aluminum to brass can improve the tensile strength slightly reduce the plastic deformation. Brass containing less than 4% aluminum has excellent comprehensive properties such as processing forging. Adding 1% tin to brass can obviously improve its ability to resist sea deep sea air erosion, so it is called "South China Sea Fleet brass". Tin can also improve the machinability of brass. The key purpose of adding lead to brass is to improve the machinability wear resistance, lead does little harm to the compressive strength of brass. Manganese brass has excellent mechanical properties, heat resistance corrosion resistance; adding aluminum into manganese brass can also improve its properties obtain castings with smooth surface. Brass can be divided into forging working pressure production processing.

Zhejiang Hongxin Copper Co., Ltd. is an enterprise specialized in the production sales of military copper tubes (rods), precision instrument bourdon tubes, electronic communication capillaries other copper profile products. Through horizontal continuous casting extrusion drawing process, various specifications of tin phosphor bronze, phosphor bronze bar are produced. The grades are qsn8-0.3, qsn7-0.2, qsn6.5-0.4, Qsn6.5-0.1, qsn4-0.3, etc., which are used in instrument industry, communication equipment industry, industrial sewing machine industry, new energy car washing, motorcycle industry other industries. The products are produced according to the national standard European Union RoHS organization, SGS test report is provided.

The company was established in Suzhou in 1996 moved to Shanghai in 2003. In 2017, Zhejiang Hongxin Copper Co., Ltd. was established put into production in Lincheng town industrial concentration area of Changxing County. After more than 20 years of development, it has become a backbone production enterprise with strong R & D production comprehensive strength, large number of patents complete product specifications in the same industry in China, its products are widely sold all over the world.