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STC buried polyethylene (PE) standard valve for gas
STC buried polyethylene (PE) long protective barrel valve for gas
STC buried polyethylene (PE) single relief valve for gas
STC buried polyethylene (PE) double relief valve for gas
PE gas valve series
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Beijing songtiancheng technology co. LTD
Add: no. 7 xingyan street, yancun town, fangshan district, Beijing
Tel: 010-80330935
Mail editor: 102412
Mailbox：market@bjstc.com
Web ：www.bjstc.com
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Beijing songtian cheng technology co., LTD Beijing ICP 19013408 -1 website construction: zhongqi power north dichotomy