欧美性xxx久久,国产剧情演绎系列丝袜高跟,91在线无码视频,精品国产99国产精品
                Service Hotline
                086-577-86923687
                Current Location:Home - News - Industry News
                Head types and production methods
                Release Time:2011-11-23  Views :
                Category Head
                 
                Head Material can be divided into: plastic, stainless steel seal top, head products are mostly male, cone shell, adjustable sections, flat lid and tightening the mouth. Wherein the convex head (sometimes referred to by the shape classification) comprising: a hemispherical head, oval head, dished head and a spherical cap-shaped head.
                Head of manufacturing methods
                a) Small head: the overall shape;
                b) large and medium-sized head: first splicing molding - the most widely used, mainly for the requirements of the standard in terms of it;
                c) large head: because of factors such as transport and open file request to split forming, after welding together.
                Key Words : 封頭
                Products
                Elliptical head
                Elliptical head
                Butterfly head
                Butterfly head
                Spherical head spin edge
                Spherical head spin edge
                Flat Head
                Flat Head
                Spherical head
                Spherical head
                Bow bottom head
                Bow bottom head
                Conical head
                Conical head
                Spherical cap shaped head
                Spherical cap shaped head
                Insulation panel
                Insulation panel
                Expansion Joints
                Expansion Joints
                Jacket (cylinder) rotation side
                Jacket (cylinder) rotation side
                Manhole flange
                Manhole flange
                NAVIGATION
                Wenzhou Shangshang Metal Products Co., Ltd.
                Add : 208,Zhanhong Road,Dushan,Longwan CentralIndustry,Wenzhou
                Tel : 086-577-86923687 85981288  Fax : 086-577-86913687
                All Rights Reserved © 2016 Wenzhou Shangshang Metal Products Co., Ltd    Zhejiang ICP No. 08,005,782
                • Follow Us

                  Follow Us

                主站蜘蛛池模板: 少妇又色又紧又爽又刺激视频| 特级毛片A级毛片在线播放WWW| 久久久久久久久久天堂蜜芽tv| 桃园县| 亚洲日韩国产综合一区二区三区| AV无码AV天天AV天天爽| 尤溪县| 国产一级牲交高潮片| 黔西| 特级无码毛片免费视频播放▽ | 亚洲综合欧美色五月俺也去| 国产成人无码国产亚洲| 五月天在线视频国产在线| 狠色噜噜色狠狠狠综合久久| 禄丰县| 欧美三级网站| 邓州市| 亚洲AV永久无码精品天堂动漫| 无锡市| 99无码精品二区在线视频 | 国产精品无码专区| 恩平市| 久久久无码精品亚洲日韩| 亚洲美女久久| 韩国一级一片永久免费| 动漫免费网站无遮挡| 欧美成人片在线观看| 免费女人高潮流视频在线观看| 欧美www在线观看| 国产美女尿尿网站| 中文字幕無碼亂倫系列| 2021中文日产幕无线| 亚洲国产精品福利片在线观看| 97久久精品人人澡人人爽| 人与嘼AV免费| 中文精品久久久久人妻不卡无码| 繁昌县| AV无码不卡一区二区| 久久国产精品拍拍拍| 免费av在线观看| 永清县|