6020/6021 pet polyester; 6630B; 6641; 6640; 6650 insulation materials; Pearly-lustre film; white pet polyester film; kness pet polyester film; Sub-gloss film; special type engineering plastic; H upward high temperature insulation paper; H upward high temperature immersed rubber insulation paper; NOMEX water-punctured cloth; TUFQUIN insulation paper; TFT compound materials