国产裸体美女永久免费无遮挡,国产农村妇女精品一二区,国产女人18毛片水真多18精品,国产三级精品三级在线观看,国产无码AV,国产无人区码卡功能齐全,国产一级a毛一级a看免费视频,国产一区二区三区精华液,国产一区二三区好的精华液,国产又粗又猛又黄又爽无遮挡

YXD形

YXD type

活塞密封

piston seal

TPU、NBR

JB/ZQ4264-97

JB/4264-86

Q/ZB248-77

YXd形

YXd type

活塞桿密封

piston rod seal

TPU、NBR

JB/ZQ4265-97

JB/4265-86

Q/ZB249-77

KYC形

KYC type

活塞、活塞桿密封

piston,piston rod seal

TPU、NBR、FKM

GB2879-81/KY系列

FC形防塵

FC type dustproof

活塞桿密封與防塵

piston rod seal and dustproof

TPU、NBR

JB/T6657-93

J形防塵

J type dustproof

活塞桿外露處防塵

exposed piston rod dustproof

TPU、NBR

JB/T6657-93

V形夾布密封圈

V type fabric seal ring

高低壓油缸活塞

與活塞桿組合密封

high ,low pressure oil cylinder piston and piston rod composite seal

夾布NBR

NBR fabric NBR

HG4-337-66(A型

KG形格來圈

KG type Glyd ring

高壓油缸活塞密封

high pressure cylinder piston seal

PTFE青銅 復(fù)合材料

PTFE bronze Composite material

JB/T15242.1-94

GS形斯特封

GS type Step seal

高壓油缸、活塞桿密封

high pressure oil cylinder,

piston rod seal

PTFE青銅 復(fù)合材料

PTFE bronze Composite material

JB/T15242.1-94

O形圈

O type ring

靜密封、動密封

Silent seal, Dynamic seal

NBR、MVQ、FKM

GB3452.1-92

GB3452.1-82

活塞、活塞桿支承環(huán)

piston, piston rod support ring

活塞、活塞桿

導向、支承、耐磨

Piston, piston rod guide,

support, wear resistant

填充POM 填充PTFE

Packing ROM,

Packing ROM

GB/T15242.2-94

ZG、DAS雙向組

合密封圈

ZG, DAS two-way composite seal ring

雙作用活塞

導向密封

two-way ram guide seal

NBR、POM導向環(huán) PTFE墊圈

NBR, POM guide ring

PTFE washer

國際ISO6547標準

International ISO6547 standard

LW導向環(huán)、DW

滑環(huán)、K形卡箍

LW guide ring, DW slip

搑ing, K type clasp

煤礦綜普采液壓支架專用

Specially used for the hydraulic support of the comprehensive general coal mining.

POM、PTFE

煤炭部

Ministry of Coal Industry

HG4-1767-85

"NL"蕾型

"NL"bud type

煤礦液壓支架單側(cè)專用

Specially used for the single side of the coalmine hydraulic support

TPU復(fù)合材料

TPU composite material

煤炭部

Ministry of Coal Industry

HG4-1767-85

"DE"鼓型

"DE" drum type

煤礦液壓支架雙側(cè)專用

Specially used for the double sides of the coalmine hydraulic support

TPU復(fù)合材料

TPU composite material

煤炭部

Ministry of Coal Industry

HG4-1767-85