BS EN 1119-2009 Plastics piping systems — Joints for glass-reinforced thermose
BS EN 1119-2009 Plastics piping systems — Joints for glass-reinforced thermosetting plastics (GRP) pipes and fittings — Test methods for leaktightness and resistance to damage of non-thrust resistant flexible joints with谢谢您的分享,金币已奖励!
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