Description Zr1 rubber copper pipe connection without leak pipe repair clamp Zr-1 stainless steel pipe repair clamp, main material is stainless steel. You can choose the cooler you like. It used to pipe quick repairment on water , gas, oil pipeline, etc. Materials Band: 304 or 316 stainless steel.316 is used for sea water or in salty water with nbr rubber is recommended. Bolts and 304 or 316 stainless steel. Bolts threads are teflon coated (green or black)to prevent galling. Nuts: attached to the clamp Lugs: type 304 or 316 stainless steel Sidebars: type 304 or 316 stainless steel tungsten inert gas (tig) welded to form a strong, permanent fusion with the repair clamp band. Lifter bar: type 304 or 316 stainless steel. Lip curve holds bolts in position while tightening and serves as a bearing surface for nuts. Gasket: epdm compounded for potable water service. Gasket ends are tapered for a dependable seal. Nbr compounded for gas industries. Also potable nbr, sbr, viton, silicon can be used as requested.(vulcanized rubber- iso 814 norm) Faq 1. Can i get free samples? A: yes, we can provide you the free samples, but you need to bear their own delivery costs. 2. Can i request to change the form of packaging and transportation? A: yes, we can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads. 3. Can i request to advance the shipment? A: it should be depends on whether there is sufficient inventory in our warehouse. 4. Can you produce the products according to my own drawings? A: yes, we accept oem, we can produce the products according to your drawings that will be most satisfy you.