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中国(2)
IPC部
B(2)
IPC大类
B32(2)
C08(2)
IPC小类
B32B(2)
IPC
B32B027/30(2)
发明人
FENG J(2)
公开年
2022(2)
申请年
专利权人
Weather-resistant drainage pipeline with multilayer structure, comprises an inner layer, an intermediate layer and an outer layer, where the intermediate layer pipe comprises PVC resin, calcium carbonate powder, calcium-zinc heat stabilizer, solid plasticizer, processing aid and toughening modifier.
HUO F, CHEN H, SONG Q, FENG J
Material useful in preparing pipe for underground coal mine, comprises polyvinyl chloride resin, impact modifier, antistatic agent, flame retardant smoke inhibitor, lubricant, heat stabilizer, reinforcing agent and plasticizer.
LI F, FENG J, LI N, MA J, ZHANG C
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