T形模头[挤塑模头]
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steam pipe tee head 蒸汽管丁字头
tee-head bolt 丁字头螺栓
tee head 丁字头
tee head bolt 丁字头螺栓
bull head tee 大头三道
back head brace tee 机车外门板撑杆角铁
The simple well head assembly newly developed is comprised of protection flange, pup joint, clip, gate valve, tee joint and anti-vibration pressure meter.
研制的简易酸化井口装置由保护法兰、过渡短节、卡箍、闸阀、三通和抗振压力表等组成。
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