framework oil seal material:SPCC certification:ISO9001:2000;SGS with 15 years ... steel, stainless steel, copper, brass, alloy, aluminum etc ( All Metal in Available)Surface treatmentspolishing, oiled (rust-prevented), zinc-plated, nickel-plated ... , chrome-plated, hot-galvanized, sandblasting, painting, powder-coating.(All in available)Supply Ability10,000,000 per monthMouldsThere are more than ...