欧美r级在线观看-视频在线不卡-国产乱子伦农村叉叉叉-加勒比综合-人妻熟妇乱又伦精品视频app-欧洲色视频-欧美乱插-99久久久无码国产精品古装-成人午夜又粗又硬又大-国产免费黄色大片-欧美黑人狂躁日本寡妇-91日韩中文字幕-毛片一毛片二毛片三国产片-亚洲香蕉中文日韩v日本-乱中年女人伦av二区-麻豆一区产品精品蜜桃的广告语-av中文字幕网免费观看-深夜成人福利视频-51国产在线-男人天堂视频在线观看

Diameter changes tee..

spool

Diameter changes spo..

S-type bent pipe

135 ° elbow

Flange 120 ° elbow

U-shaped elbow

Buffer tee

180 ° tee

Gooseneck tube

Nonylphenol type sof..

Soft seal mud bonnet..

Soft seal mud stents..

Welding (threaded) t..

Soft seal mud valve ..

By hard seal mud val..