PWG-3.5*7,PWG-4*10,PWG-4*20,PWG-4*30,PWG-5*10,PWG-5*20,吸盤
PWG-3.5*7-N,PWG-4*10-N,PWG-4*20-N,PWG-4*30-N,PWG-5*10-N,PWG-5*20-N,
PWG-3.5*7-S,PWG-4*10-S,PWG-4*20-S,PWG-4*30-S,PWG-5*10-S,PWG-5*20-S,
PWG-3.5*7-U,PWG-4*10-U,PWG-4*20-U,PWG-4*30-U,PWG-5*10-U,PWG-5*20-U,