00:37 #silicone sealant #drum silicone sealant #sealant manufacture
00:35 Junbond fire resistance silicone sealant test
02:59 00:31 Have a look at junbond sealant shop
00:47 Junbond technician team test customer's sample
00:47 Junbond technician team test the customer's sample's quality
00:24 Junbond 7th factory
00:31 Workers produce silicone sealant at night