wherein the first metallic material, {HEAD ~ the second metallic material}, the outer layer, and the inner layer provide {TAIL ~ an integrated, double layer susceptor} 
provide
wherein the first metallic material , { HEAD ~ the second metallic material } , the outer layer , and the inner layer provide { TAIL ~ an integrated , double layer susceptor }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL