These new guardian armour gusset envelopes are made from durable, heavyweight 130gsm paper reinforced with woven polyester thread for additional strength'. '.strtoupper('t')he manilla envelopes feature a simple peel and seal closure with power tac ad... These new guardian armour gusset envelopes are made from durable, heavyweight 130gsm paper reinforced with woven polyester thread for additional strength'. '.strtoupper('t')he manilla envelopes feature a simple peel and seal closure with power tac ad... |