... ), reducing elbow, branch units, reinforcing tube; increase in the piping branch fittings: three direct links, Stone; for pipe sealing fittings ... of hemp, blind flange boards, plugs, blind flanges; for piping fixed fittings: clasp, tow hooks, rings, brackets, brackets, ... pipe; rubber pipe; graphite pipe; forged steel pipe fittings; the PPR pipe fittings; alloy pipe fittings; pe of pipe; ABS ...