... advanced equipment 1.1-100 microns2.Stainless steel,Copper, titanium3.OEM,Non-standard4.mesh powder sintered Material ... BSLM, muffler exhaust throttle BESL, muffler exhaust throttle BESLD, copper / stainless steel sintered ( filter, cartridge, filter tube, filter ... after forming, blazed sintering, machinery processing etc welding process into a new and effective porous filter materials equipment ...