00514nam a2200193Ia 4500 CTU_80777 210402s9999 xx 000 0 und d 668.4 R186 Randolph, Alan F. Plastics engineering handbook Alan F. Randolph New York Reinhold Publishing corporation 1962 Plastics Handbook Trọng Hải Trung tâm Học liệu Trường Đại học Cần Thơ