Tianjing Jingyu Hose Clamp Factory is a professional manufacturerof hose clamps,worm driveclamp,stainless steel clamp,marine gradeclamps,heavy troqueclamps and weding &tin-circle free jointcopper fittings and pipe clamps.All our hose clamps are complyingwith American Standard J1508 and German style.Moreover,our productsare widely used in refrigeration,air conditioner,boats,ships andsuperior water supply systems.The copper fittings take TP2brasspipes,as material,with very solid nature and anticorrosivecapabillity,which makes it possible to be used in al differentenvironments and will not be damanged,The fittingsare used inconstrustion for several hundred years,and hey can still keep theirreliablity and as hard as the time theyare used,while there is noneed to change.