Inflatable cylindrical seals for tunnel boring applications
by Admin Admin
An engineering firm approached Pronal with
a request to design and manufacture an inflatable O-ring type
cylindrical seal. This inflatable seal was to be used in a tunnel boring
project several kilometers long...
《밀리언카지노》《로얄카지노》《맥스카지노》《카심바슬롯카지노》가입시 쿠폰 지급＊매충전 보너스지급 ★━━[축]최-초 1억 출금자 탄생!
#꽁머니 #무료카지노쿠폰 #첫충전 10%보상 #다양한 무료쿠폰제공 #최-초 1.5억 출금자 탄생